Katherine Kaufer Christoffel
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Katherine Kaufer Christoffel has a total of 29 co-authors. Here are the top co-authors by number of shared publications:
- Maryann Mason
Consortium to Lower Obesity in Chicago Children , Chicago, USA
2 shared publications - Adam B. Becker
Ann and Robert H. Lurie Children’s Hospital of Chicago
1 shared publication Alex P. Nagle
Northwestern University
1 shared publication- Anna Barnes
Lurie Children’s Hospital, Chicago, USA
1 shared publication - Antonieta Diaz
University of Illinois at Chicago, Jane Addams College of Social Work, Chicago, USA
1 shared publication - Catherine A. Willows
Obesity Prevention Initiatives, Illinois Chapter, American Academy of Pediatrics (ICAAP), Chicago, USA
1 shared publication
Latest Publications
- Open Access
- 1 December 2016
- Published by Springer Nature in BMC Pediatrics
- Vol. 16 (1) , 1-9
Addressing asthma and obesity in children with community health workers: proof-of-concept intervention development
The objective of this study was to design and test the feasibility and impact of a community health worker (CHW) intervention for comorbid asthma and obesity. Using a proof of concept study design, we collected pre/post outcomes from a single intervention cohort of urban low-income in a single community area. A community-based participatory research approach was employed. Forty-six children and their caregivers were recruited. Children were 5–12 years old with physician-diagnosed asthma and body mass index (BMI) > 85%. Families were offered 12 home visits from CHWs that integrated asthma and obesity core curriculums. The primary asthma outcome was asthma control, measured via the Childhood Asthma Control Test (cACT). The primary obesity outcome was child body mass index (BMI). Families received a median of 10 out of the 12 home visits over 1 year. At 1 year, there was a significant improvement in the number of children with controlled asthma as measured via cACT (85.7% at 1 year compared to 61.9% at baseline, p = 0.01). Activity limitations and emergency utilization were reduced while inhaler technique improved (p < 0.01 for all). Child BMI z-score was reduced: mean = 1.97 (SD 0.79) at 1 year compared to mean = 2.13 (SD 0.40) at baseline, p < 0.01. No association was seen between change in child BMI and change in asthma control. Worse baseline child depression scores were associated with less improvement in asthma control (p = 0.003) and higher baseline caregiver post-traumatic stress disorder scores were associated with increased child BMI (p = 0.012). The CHW intervention has promise for improving asthma and weight outcomes in high-risk children with comorbid asthma and obesity; this model warrants further development and investigation.
- 1 December 2016
- Published by Springer Nature in BMC Pediatrics
- Vol. 16 (1) , 1-9
Open AccessAddressing asthma and obesity in children with community health workers: proof-of-concept intervention development
The objective of this study was to design and test the feasibility and impact of a community health worker (CHW) intervention for comorbid asthma and obesity. Using a proof of concept study design, we collected pre/post outcomes from a single intervention cohort of urban low-income in a single community area. A community-based participatory research approach was employed. Forty-six children and their caregivers were recruited. Children were 5–12 years old with physician-diagnosed asthma and body mass index (BMI) > 85%. Families were offered 12 home visits from CHWs that integrated asthma and obesity core curriculums. The primary asthma outcome was asthma control, measured via the Childhood Asthma Control Test (cACT). The primary obesity outcome was child body mass index (BMI). Families received a median of 10 out of the 12 home visits over 1 year. At 1 year, there was a significant improvement in the number of children with controlled asthma as measured via cACT (85.7% at 1 year compared to 61.9% at baseline, p = 0.01). Activity limitations and emergency utilization were reduced while inhaler technique improved (p < 0.01 for all). Child BMI z-score was reduced: mean = 1.97 (SD 0.79) at 1 year compared to mean = 2.13 (SD 0.40) at baseline, p < 0.01. No association was seen between change in child BMI and change in asthma control. Worse baseline child depression scores were associated with less improvement in asthma control (p = 0.003) and higher baseline caregiver post-traumatic stress disorder scores were associated with increased child BMI (p = 0.012). The CHW intervention has promise for improving asthma and weight outcomes in high-risk children with comorbid asthma and obesity; this model warrants further development and investigation.
- 30 September 2012
- Published by Springer Nature in Maternal and Child Health Journal
- Vol. 17 (9) , 1712-1717
Engaging Chicago Hospitals in the Baby-Friendly Hospital Initiative
Breastfeeding is now widely recognized as a vital obesity prevention strategy and hospitals play a primary role in promoting, supporting and helping mothers to initiate and maintain breastfeeding. The Baby-Friendly Hospital Initiative (BFHI) provides an evidence-based model that hospitals can use to plan and implement breastfeeding quality improvement (QI) projects. Funding under Communities Putting Prevention to Work (CPPW), administered by the CDC, brought together key Chicago partners to provide individualized support and technical assistance with breastfeeding QI projects to the 19 maternity hospitals in Chicago. A community organizing approach was taken to mobilize hospital interest in breastfeeding QI projects, leading to successes, e.g. 12/19 (63 %) Chicago hospitals registered with Baby-Friendly USA, Inc. (BFUSA) to pursue official Baby-Friendly designation. Key factors that fostered this success included: involving all levels of hospital staff, financial incentives, and ongoing tailored technical assistance. To assist other communities in similar work, this article discusses the approach the project took to mobilize hospitals to improve breastfeeding support practices based on the BFHI, as well as successes and lessons learned.
- 30 September 2012
- Published by Springer Nature in Maternal and Child Health Journal
- Vol. 17 (9) , 1712-1717
Engaging Chicago Hospitals in the Baby-Friendly Hospital Initiative
Breastfeeding is now widely recognized as a vital obesity prevention strategy and hospitals play a primary role in promoting, supporting and helping mothers to initiate and maintain breastfeeding. The Baby-Friendly Hospital Initiative (BFHI) provides an evidence-based model that hospitals can use to plan and implement breastfeeding quality improvement (QI) projects. Funding under Communities Putting Prevention to Work (CPPW), administered by the CDC, brought together key Chicago partners to provide individualized support and technical assistance with breastfeeding QI projects to the 19 maternity hospitals in Chicago. A community organizing approach was taken to mobilize hospital interest in breastfeeding QI projects, leading to successes, e.g. 12/19 (63 %) Chicago hospitals registered with Baby-Friendly USA, Inc. (BFUSA) to pursue official Baby-Friendly designation. Key factors that fostered this success included: involving all levels of hospital staff, financial incentives, and ongoing tailored technical assistance. To assist other communities in similar work, this article discusses the approach the project took to mobilize hospitals to improve breastfeeding support practices based on the BFHI, as well as successes and lessons learned.
- Open Access
- 16 April 2012
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 9 (4) , 1227-1262
Early Origins of Child Obesity: Bridging Disciplines and Phases of Development - September 30–October 1, 2010
This report summarizes a conference: “Early Origins of Child Obesity: Bridging Disciplines and Phases of Development”, held in Chicago on September 30–October 1, 2010. The conference was funded in part by the National Institutes of Health and the Williams Heart Foundation, to achieve the conference objective: forging a next-step research agenda related to the early origins of childhood obesity. This research agenda was to include working with an array of factors (from genetic determinants to societal ones) along a continuum from prenatal life to age 7, with an emphasis on how the developing child deals with the challenges presented by his/her environment (prenatal, parental, nutritional, etc.). The conference offered a unique opportunity to facilitate communication and planning of future work among a variety of researchers whose work separately addresses different periods in early life. Over the span of two days, speakers addressed existing, critical research topics within each of the most-studied age ranges. On the final day, workshops fostered the discussion needed to identify the highest priority research topics related to linking varied early factor domains. These are presented for use in planning future research and research funding.
- 16 April 2012
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 9 (4) , 1227-1262
Open AccessEarly Origins of Child Obesity: Bridging Disciplines and Phases of Development - September 30–October 1, 2010
This report summarizes a conference: “Early Origins of Child Obesity: Bridging Disciplines and Phases of Development”, held in Chicago on September 30–October 1, 2010. The conference was funded in part by the National Institutes of Health and the Williams Heart Foundation, to achieve the conference objective: forging a next-step research agenda related to the early origins of childhood obesity. This research agenda was to include working with an array of factors (from genetic determinants to societal ones) along a continuum from prenatal life to age 7, with an emphasis on how the developing child deals with the challenges presented by his/her environment (prenatal, parental, nutritional, etc.). The conference offered a unique opportunity to facilitate communication and planning of future work among a variety of researchers whose work separately addresses different periods in early life. Over the span of two days, speakers addressed existing, critical research topics within each of the most-studied age ranges. On the final day, workshops fostered the discussion needed to identify the highest priority research topics related to linking varied early factor domains. These are presented for use in planning future research and research funding.
- 18 April 2009
- Published by Springer Nature in Obesity Surgery
- Vol. 19 (7) , 833-839
Prevalence of Obesity Among Children and/or Grandchildren of Adult Bariatric Surgery Patients
Clinical experience suggests that some adults who undergo bariatric surgery have children who are obese. Childhood obesity is associated with increased morbidity and mortality in later life. This study examined the prevalence of obesity among children and grandchildren (≤12 years of age) of adult bariatric surgery patients. Patients in a prospective database of morbidly obese patients who underwent bariatric surgery between January 2004 and May 2007 were recruited by phone and in clinic. Patient demographics, body mass index (BMI) at surgery, and survey data were collected. The survey included questions regarding their child/grandchild's body habitus, weight, and height. Child obesity was defined as BMI percentile ≥95. Statistical significance was set at p < 0.05. One hundred twenty-two patients were enrolled in this study (77% women, mean BMI 49 kg/m2). One hundred thirty-four out of 233 children/grandchildren identified had complete data; 41% had a BMI percentile ≥95. Only 29% of these obese children were so identified by the adult respondents. Significantly more biological children/grandchildren were obese than nonbiological (p = 0.013), and significantly more biological children were obese than biological grandchildren (p = 0.027). This sample of bariatric surgery patients had a high proportion of obese preteen children/grandchildren. Obesity was most prevalent among biological children (vs. biological grandchildren and nonbiological children). Patients often did not recognize the degree of overweight in their children/grandchildren. Because families of bariatric surgery patients often include obese children, interventions aimed at all family members merit consideration.
- 18 April 2009
- Published by Springer Nature in Obesity Surgery
- Vol. 19 (7) , 833-839
Prevalence of Obesity Among Children and/or Grandchildren of Adult Bariatric Surgery Patients
Clinical experience suggests that some adults who undergo bariatric surgery have children who are obese. Childhood obesity is associated with increased morbidity and mortality in later life. This study examined the prevalence of obesity among children and grandchildren (≤12 years of age) of adult bariatric surgery patients. Patients in a prospective database of morbidly obese patients who underwent bariatric surgery between January 2004 and May 2007 were recruited by phone and in clinic. Patient demographics, body mass index (BMI) at surgery, and survey data were collected. The survey included questions regarding their child/grandchild's body habitus, weight, and height. Child obesity was defined as BMI percentile ≥95. Statistical significance was set at p < 0.05. One hundred twenty-two patients were enrolled in this study (77% women, mean BMI 49 kg/m2). One hundred thirty-four out of 233 children/grandchildren identified had complete data; 41% had a BMI percentile ≥95. Only 29% of these obese children were so identified by the adult respondents. Significantly more biological children/grandchildren were obese than nonbiological (p = 0.013), and significantly more biological children were obese than biological grandchildren (p = 0.027). This sample of bariatric surgery patients had a high proportion of obese preteen children/grandchildren. Obesity was most prevalent among biological children (vs. biological grandchildren and nonbiological children). Patients often did not recognize the degree of overweight in their children/grandchildren. Because families of bariatric surgery patients often include obese children, interventions aimed at all family members merit consideration.
- 1 April 2007
- Published by American Public Health Association in American Journal of Public Health
- Vol. 97 (4) , 626-629
Firearm Injuries: Epidemic Then, Endemic Now
There has been a transition in US firearm injuries from an epidemic phase (mid-1980s to early 1990s) to an endemic one (since the mid-1990s). Endemic US firearm injuries merit public health attention because they exact an ongoing toll, may give rise to new epidemic outbreaks, and can foster firearm injuries in other parts of the world. The endemic period is a good time for the development of ongoing prevention approaches, including assessment and monitoring of local risk factors over time and application of proven measures to reduce these risk factors, development of means to address changing circumstances, and ongoing professional and public education designed to weave firearm injury prevention into the fabric of public health work and everyday life.
- 1 April 2007
- Published by American Public Health Association in American Journal of Public Health
- Vol. 97 (4) , 626-629
Firearm Injuries: Epidemic Then, Endemic Now
There has been a transition in US firearm injuries from an epidemic phase (mid-1980s to early 1990s) to an endemic one (since the mid-1990s). Endemic US firearm injuries merit public health attention because they exact an ongoing toll, may give rise to new epidemic outbreaks, and can foster firearm injuries in other parts of the world. The endemic period is a good time for the development of ongoing prevention approaches, including assessment and monitoring of local risk factors over time and application of proven measures to reduce these risk factors, development of means to address changing circumstances, and ongoing professional and public education designed to weave firearm injury prevention into the fabric of public health work and everyday life.
- Open Access
- 30 March 2006
- Published by Springer Nature in International Journal of Health Geographics
- Vol. 5 (1) , 14
Identification of contrastive and comparable school neighborhoods for childhood obesity and physical activity research
The neighborhood social and physical environments are considered significant factors contributing to children's inactive lifestyles, poor eating habits, and high levels of childhood obesity. Understanding of neighborhood environmental profiles is needed to facilitate community-based research and the development and implementation of community prevention and intervention programs. We sought to identify contrastive and comparable districts for childhood obesity and physical activity research studies. We have applied GIS technology to manipulate multiple data sources to generate objective and quantitative measures of school neighborhood-level characteristics for school-based studies. GIS technology integrated data from multiple sources (land use, traffic, crime, and census tract) and available social and built environment indicators theorized to be associated with childhood obesity and physical activity. We used network analysis and geoprocessing tools within a GIS environment to integrate these data and to generate objective social and physical environment measures for school districts. We applied hierarchical cluster analysis to categorize school district groups according to their neighborhood characteristics. We tested the utility of the area characterizations by using them to select comparable and contrastive schools for two specific studies. Results We generated school neighborhood-level social and built environment indicators for all 412 Chicago public elementary school districts. The combination of GIS and cluster analysis allowed us to identify eight school neighborhoods that were contrastive and comparable on parameters of interest (land use and safety) for a childhood obesity and physical activity study. Conclusion The combination of GIS and cluster analysis makes it possible to objectively characterize urban neighborhoods and to select comparable and/or contrasting neighborhoods for community-based health studies.
- 30 March 2006
- Published by Springer Nature in International Journal of Health Geographics
- Vol. 5 (1) , 14
Open AccessIdentification of contrastive and comparable school neighborhoods for childhood obesity and physical activity research
The neighborhood social and physical environments are considered significant factors contributing to children's inactive lifestyles, poor eating habits, and high levels of childhood obesity. Understanding of neighborhood environmental profiles is needed to facilitate community-based research and the development and implementation of community prevention and intervention programs. We sought to identify contrastive and comparable districts for childhood obesity and physical activity research studies. We have applied GIS technology to manipulate multiple data sources to generate objective and quantitative measures of school neighborhood-level characteristics for school-based studies. GIS technology integrated data from multiple sources (land use, traffic, crime, and census tract) and available social and built environment indicators theorized to be associated with childhood obesity and physical activity. We used network analysis and geoprocessing tools within a GIS environment to integrate these data and to generate objective social and physical environment measures for school districts. We applied hierarchical cluster analysis to categorize school district groups according to their neighborhood characteristics. We tested the utility of the area characterizations by using them to select comparable and contrastive schools for two specific studies. Results We generated school neighborhood-level social and built environment indicators for all 412 Chicago public elementary school districts. The combination of GIS and cluster analysis allowed us to identify eight school neighborhoods that were contrastive and comparable on parameters of interest (land use and safety) for a childhood obesity and physical activity study. Conclusion The combination of GIS and cluster analysis makes it possible to objectively characterize urban neighborhoods and to select comparable and/or contrasting neighborhoods for community-based health studies.
- 1 March 2006
- Published by Wiley in Journal of School Health
- Vol. 76 (3) , 104-110
Prevalence of Overweight and Risk of Overweight Among 3- to 5-Year-Old Chicago Children, 2002-2003
This article reports the first estimates of overweight prevalence in Chicago children entering school (aged 3-5 years). Chicago data are compared with those from the National Health and Nutrition Examination Survey (NHANES) and the Early Childhood Longitudinal Study (ECLS). Data were from 2 separate convenience samples of children aged 3-5 years attending either 18 Chicago Public Schools or 10 Chicago Catholic School pre-K programs (n = 1517). Data were taken from students' Certificate of Child Health Examination (CCHE), completed by a health professional. Overall, the prevalence of overweight subjects (body mass index >or=95th percentile) was 24%, more than twice that of the national prevalence of 10% for 2- to 5-year olds documented by NHANES (1999-2002) and 3 times that of the 1998-1999 ECLS prevalence estimate of 8% for 5- to 7-year olds in the Midwest region. The data reported here document that nearly one quarter of children entering school in Chicago are already overweight. This clearly establishes a need for local schools to develop protocols and procedures to support the physical and mental health needs of affected and at-risk children. The findings also make it plain that ongoing weight status monitoring is needed and that current plans to implement this should go forward.
- 1 March 2006
- Published by Wiley in Journal of School Health
- Vol. 76 (3) , 104-110
Prevalence of Overweight and Risk of Overweight Among 3- to 5-Year-Old Chicago Children, 2002-2003
This article reports the first estimates of overweight prevalence in Chicago children entering school (aged 3-5 years). Chicago data are compared with those from the National Health and Nutrition Examination Survey (NHANES) and the Early Childhood Longitudinal Study (ECLS). Data were from 2 separate convenience samples of children aged 3-5 years attending either 18 Chicago Public Schools or 10 Chicago Catholic School pre-K programs (n = 1517). Data were taken from students' Certificate of Child Health Examination (CCHE), completed by a health professional. Overall, the prevalence of overweight subjects (body mass index >or=95th percentile) was 24%, more than twice that of the national prevalence of 10% for 2- to 5-year olds documented by NHANES (1999-2002) and 3 times that of the 1998-1999 ECLS prevalence estimate of 8% for 5- to 7-year olds in the Midwest region. The data reported here document that nearly one quarter of children entering school in Chicago are already overweight. This clearly establishes a need for local schools to develop protocols and procedures to support the physical and mental health needs of affected and at-risk children. The findings also make it plain that ongoing weight status monitoring is needed and that current plans to implement this should go forward.
- Open Access
- 3 June 2004
- Published by BMJ in Injury Prevention
- Vol. 10 (3) , 169-173
Are medical societies developing a standard for gun injury prevention?
Context:Following heightened gun violence in the 1990s, many medical societies in the United States adopted policies on the topic.Objective:Identify points of firearm violence policy agreement among large medical organizations.Design:Fourteen national medical societies—clinical focus, demonstrated interest in gun injury prevention, >2000 members—were selected for policy review in 2002. Policies were categorized on areas covered and items within these.Consensus areaswere addressed by ⩾7/14 societies.Consensus itemswere included by ⩾7/14 societies, shared itemsby 5–6.Results:There were fiveconsensus areas: access prevention, gun commerce, research, public education, and clinical counseling. There were fourconsensus items: restricting gun access by enforcing existing laws, restricting access to all guns at the point of sale, restricting access to handguns at the point of sale, and creating a national database on gun injury and death.Shared itemspromote violence prevention, clinical education on risks of guns in the home, treating guns as consumer products, restricting gun access to children, bans on automatic weapons, and promoting trigger locks.Conclusions:Large medical societies in the United States agree on key approaches for reducing gun injury mortality and morbidity. Future research will be needed to track the evolution of this emerging standard for physician action, which now includes the consensus areas and items. It promises to be, in effect, a medical standard of care for gun injury prevention. The United States experience may be useful to others working on gun injury prevention.
- 3 June 2004
- Published by BMJ in Injury Prevention
- Vol. 10 (3) , 169-173
Open AccessAre medical societies developing a standard for gun injury prevention?
Context:Following heightened gun violence in the 1990s, many medical societies in the United States adopted policies on the topic.Objective:Identify points of firearm violence policy agreement among large medical organizations.Design:Fourteen national medical societies—clinical focus, demonstrated interest in gun injury prevention, >2000 members—were selected for policy review in 2002. Policies were categorized on areas covered and items within these.Consensus areaswere addressed by ⩾7/14 societies.Consensus itemswere included by ⩾7/14 societies, shared itemsby 5–6.Results:There were fiveconsensus areas: access prevention, gun commerce, research, public education, and clinical counseling. There were fourconsensus items: restricting gun access by enforcing existing laws, restricting access to all guns at the point of sale, restricting access to handguns at the point of sale, and creating a national database on gun injury and death.Shared itemspromote violence prevention, clinical education on risks of guns in the home, treating guns as consumer products, restricting gun access to children, bans on automatic weapons, and promoting trigger locks.Conclusions:Large medical societies in the United States agree on key approaches for reducing gun injury mortality and morbidity. Future research will be needed to track the evolution of this emerging standard for physician action, which now includes the consensus areas and items. It promises to be, in effect, a medical standard of care for gun injury prevention. The United States experience may be useful to others working on gun injury prevention.
- Open Access
- 1 September 2002
- Published by BMJ in Injury Prevention
- Vol. 8 (3) , 177-180
Guns in the world: old news and new news
- 1 September 2002
- Published by BMJ in Injury Prevention
- Vol. 8 (3) , 177-180
Open AccessGuns in the world: old news and new news
- 1 August 2002
- Published by Wolters Kluwer Health
- Vol. 53 (2) , 213-218
Gun Injury Prevention Comes of Age
- 1 August 2002
- Published by Wolters Kluwer Health
- Vol. 53 (2) , 213-218
Gun Injury Prevention Comes of Age