Sydney George
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
Sydney George has a total of 19 co-authors. Here are the top co-authors by number of shared publications:
Jessica Regan
GSK, Mississauga, Canada
3 shared publicationsCheryl Ng
GSK, Singapore, Singapore
2 shared publicationsDessi Loukov
GSK, Mississauga, Canada
2 shared publicationsJustin Carrico
RTI Health Solutions, Research Triangle Park, USA
2 shared publicationsKatherine A. Hicks
RTI Health Solutions, Research Triangle Park, USA
2 shared publicationsNikolaos Giannelos
GSK, Wavre, Belgium
2 shared publications
Latest Publications
- Open Access
- 7 November 2024
- Published by BMJ in Lupus Science & Medicine
- Vol. 11 (2) , e001265
Using photovoice to investigate patient experiences of lupus nephritis in Canada
Objective Lupus nephritis (LN) is a major cause of morbidity and mortality, affecting up to 60% of patients with systemic lupus erythematosus (SLE). The perspectives of patients with SLE have been explored; however, little is known of the lived experiences of patients with LN. Methods Patients aged ≥18 years with biopsy-proven pure or mixed International Society of Nephrology/Renal Pathology Society Class III, IV or V LN were purposefully recruited from a Canadian lupus cohort to participate in a photovoice (visual–narrative participatory research method) exercise. Participants took photos of what LN means to them, impacts on daily life and factors impacting LN management. Photos were shared and discussed in focus groups. Results 13 individuals with LN participated (92.3% were female; mean (SD) age was 41.7 (14.0) years). The mean (SD) number of photos shared per participant was 4.2 (0.9). Photos (n=54) depicted activities/settings that contribute to well-being (n=15), the participants themselves (n=13), healthcare experiences (n=10), home (n=4), community (n=2), friends (n=2), work (n=2) and other challenges (n=6). All participants described physical and psychosocial impacts of living with LN. Although 12 mentioned activities/settings that contribute to well-being (eg, time in natural environments), participants were consistently reminded of limitations imposed by LN due to physical symptoms, challenges presented by the physical environment and the altered life trajectories experienced. Participants discussed the dual burden of LN and the associated medication journey; side effects and medication-related financial challenges were highlighted by ten and five participants, respectively. Conclusions Participants reported a substantial psychosocial burden associated with altered life trajectories, the dual burden of LN and the associated medication journey, and the conflicting role of the physical environment. The need for flexibility (ie, from employers, themselves) is an essential component of navigating altered life trajectories.
- 7 November 2024
- Published by BMJ in Lupus Science & Medicine
- Vol. 11 (2) , e001265
Open AccessUsing photovoice to investigate patient experiences of lupus nephritis in Canada
Objective Lupus nephritis (LN) is a major cause of morbidity and mortality, affecting up to 60% of patients with systemic lupus erythematosus (SLE). The perspectives of patients with SLE have been explored; however, little is known of the lived experiences of patients with LN. Methods Patients aged ≥18 years with biopsy-proven pure or mixed International Society of Nephrology/Renal Pathology Society Class III, IV or V LN were purposefully recruited from a Canadian lupus cohort to participate in a photovoice (visual–narrative participatory research method) exercise. Participants took photos of what LN means to them, impacts on daily life and factors impacting LN management. Photos were shared and discussed in focus groups. Results 13 individuals with LN participated (92.3% were female; mean (SD) age was 41.7 (14.0) years). The mean (SD) number of photos shared per participant was 4.2 (0.9). Photos (n=54) depicted activities/settings that contribute to well-being (n=15), the participants themselves (n=13), healthcare experiences (n=10), home (n=4), community (n=2), friends (n=2), work (n=2) and other challenges (n=6). All participants described physical and psychosocial impacts of living with LN. Although 12 mentioned activities/settings that contribute to well-being (eg, time in natural environments), participants were consistently reminded of limitations imposed by LN due to physical symptoms, challenges presented by the physical environment and the altered life trajectories experienced. Participants discussed the dual burden of LN and the associated medication journey; side effects and medication-related financial challenges were highlighted by ten and five participants, respectively. Conclusions Participants reported a substantial psychosocial burden associated with altered life trajectories, the dual burden of LN and the associated medication journey, and the conflicting role of the physical environment. The need for flexibility (ie, from employers, themselves) is an essential component of navigating altered life trajectories.
- Open Access
- 17 July 2024
- Published by Springer Nature in PharmacoEconomics - Open
- Vol. 8 (5) , 785
Correction: Updated Public Health Impact and Cost Effectiveness of Recombinant Zoster Vaccine in Canadian Adults Aged 50 Years and Older
- 17 July 2024
- Published by Springer Nature in PharmacoEconomics - Open
- Vol. 8 (5) , 785
Open AccessCorrection: Updated Public Health Impact and Cost Effectiveness of Recombinant Zoster Vaccine in Canadian Adults Aged 50 Years and Older
- Open Access
- 11 April 2024
- Published by Springer Nature in PharmacoEconomics - Open
- Vol. 8 (3) , 481-492
Updated Public Health Impact and Cost Effectiveness of Recombinant Zoster Vaccine in Canadian Adults Aged 50 Years and Older
Objectives The aim of this study was to update previously estimated public health impact and cost effectiveness of recombinant zoster vaccine (RZV) for the prevention of herpes zoster (HZ) in Canadians aged ≥50 years using longer-term RZV efficacy and waning data and real-world coverage and completion. Methods A multicohort Markov model was used to conduct a cost-utility analysis comparing RZV with no HZ vaccination among Canadians aged ≥50 years. Real-world data were used for first-dose coverage (17.5%) and second-dose completion (65%). Vaccine efficacy and waning data were applied from up to 8-year follow-up from the ZOE-50 and ZOE-70 clinical trials. Incremental costs and benefits were calculated using a lifetime horizon from the healthcare payer (base case) and societal perspectives. A discount rate of 1.5% was applied to costs and quality-adjusted life-years (QALYs). Results The model estimated that RZV would prevent 303,835 HZ cases, 83,256 post-herpetic neuralgia (PHN) cases, 39,653 other complications, and 99 HZ-related deaths compared with no HZ vaccination. Incremental cost-effectiveness ratios (ICERs) were estimated to be $27,486 and $22,097 per QALY (2022 Canadian dollars [CAN$]) from the healthcare payer and societal perspectives, respectively. The base-case ICER was most sensitive to a lower percentage of initial HZ cases with PHN. Almost all probabilistic sensitivity analysis simulations (98.1%) resulted in ICERs <CAN$50,000 per QALY. Conclusions RZV is expected to remain a cost-effective option for Canadian adults aged ≥50 years when using longer-term RZV efficacy and waning estimates, although the estimated public health impact was smaller than in the previous analysis (due to lower coverage/completion estimates). Graphical Abstract
- 11 April 2024
- Published by Springer Nature in PharmacoEconomics - Open
- Vol. 8 (3) , 481-492
Open AccessUpdated Public Health Impact and Cost Effectiveness of Recombinant Zoster Vaccine in Canadian Adults Aged 50 Years and Older
Objectives The aim of this study was to update previously estimated public health impact and cost effectiveness of recombinant zoster vaccine (RZV) for the prevention of herpes zoster (HZ) in Canadians aged ≥50 years using longer-term RZV efficacy and waning data and real-world coverage and completion. Methods A multicohort Markov model was used to conduct a cost-utility analysis comparing RZV with no HZ vaccination among Canadians aged ≥50 years. Real-world data were used for first-dose coverage (17.5%) and second-dose completion (65%). Vaccine efficacy and waning data were applied from up to 8-year follow-up from the ZOE-50 and ZOE-70 clinical trials. Incremental costs and benefits were calculated using a lifetime horizon from the healthcare payer (base case) and societal perspectives. A discount rate of 1.5% was applied to costs and quality-adjusted life-years (QALYs). Results The model estimated that RZV would prevent 303,835 HZ cases, 83,256 post-herpetic neuralgia (PHN) cases, 39,653 other complications, and 99 HZ-related deaths compared with no HZ vaccination. Incremental cost-effectiveness ratios (ICERs) were estimated to be $27,486 and $22,097 per QALY (2022 Canadian dollars [CAN$]) from the healthcare payer and societal perspectives, respectively. The base-case ICER was most sensitive to a lower percentage of initial HZ cases with PHN. Almost all probabilistic sensitivity analysis simulations (98.1%) resulted in ICERs <CAN$50,000 per QALY. Conclusions RZV is expected to remain a cost-effective option for Canadian adults aged ≥50 years when using longer-term RZV efficacy and waning estimates, although the estimated public health impact was smaller than in the previous analysis (due to lower coverage/completion estimates). Graphical Abstract
- Open Access
- 19 March 2024
- Published by Taylor & Francis in Human Vaccines & Immunotherapeutics
- Vol. 20 (1) , 2317595
Attitudes, barriers, and facilitators to adherent completion of the recombinant zoster vaccine regimen in Canada: Qualitative interviews with healthcare providers and patients
This qualitative, cross-sectional study aimed to understand the barriers and facilitators related to the adherence and completion of the recombinant zoster vaccine (RZV) two-dose series in Canada, as perceived by healthcare providers (HCPs) and patients. Data collection occurred via 60-minute concept elicitation interviews with 12 HCPs (4 physicians, 2 nurse practitioners, 6 pharmacists) who had prescribed and/or administered RZV in Canada, and 21 patients aged ≥50 years who had received ≥1 dose of RZV. Patients were categorized as adherent (received both doses within the recommended 2-to-6-month timeframe; n = 11) or non-adherent (received only one dose or second dose outside the recommended timeframe; n = 10). Interview transcripts were coded and analyzed using a two-part thematic analysis approach. HCP-identified barriers to RZV adherence included high out-of-pocket cost, inconsistent/lack of health plan coverage, inconvenient processes for accessing RZV, and patient forgetfulness. HCP-identified facilitators included desire for shingles protection, HCP encouragement, and reminders. Barriers to RZV adherence identified by patients included lack of HCP knowledge/experience with RZV, receiving unreliable/confusing information, having unpleasant/severe side effects following the first dose, high out-of-pocket cost, lack of insurance coverage, and forgetfulness. Patient-identified facilitators included self-motivation, financial support, convenient processes for obtaining RZV, and reminders. In conclusion, many factors can influence RZV series completion and adherence among adults in Canada, including cost, insurance coverage, HCP knowledge and encouragement, and reminders. Awareness of these factors may inform HCPs in helping patients overcome barriers and identify opportunities for future consideration, facilitating protection against herpes zoster.
- 19 March 2024
- Published by Taylor & Francis in Human Vaccines & Immunotherapeutics
- Vol. 20 (1) , 2317595
Open AccessAttitudes, barriers, and facilitators to adherent completion of the recombinant zoster vaccine regimen in Canada: Qualitative interviews with healthcare providers and patients
This qualitative, cross-sectional study aimed to understand the barriers and facilitators related to the adherence and completion of the recombinant zoster vaccine (RZV) two-dose series in Canada, as perceived by healthcare providers (HCPs) and patients. Data collection occurred via 60-minute concept elicitation interviews with 12 HCPs (4 physicians, 2 nurse practitioners, 6 pharmacists) who had prescribed and/or administered RZV in Canada, and 21 patients aged ≥50 years who had received ≥1 dose of RZV. Patients were categorized as adherent (received both doses within the recommended 2-to-6-month timeframe; n = 11) or non-adherent (received only one dose or second dose outside the recommended timeframe; n = 10). Interview transcripts were coded and analyzed using a two-part thematic analysis approach. HCP-identified barriers to RZV adherence included high out-of-pocket cost, inconsistent/lack of health plan coverage, inconvenient processes for accessing RZV, and patient forgetfulness. HCP-identified facilitators included desire for shingles protection, HCP encouragement, and reminders. Barriers to RZV adherence identified by patients included lack of HCP knowledge/experience with RZV, receiving unreliable/confusing information, having unpleasant/severe side effects following the first dose, high out-of-pocket cost, lack of insurance coverage, and forgetfulness. Patient-identified facilitators included self-motivation, financial support, convenient processes for obtaining RZV, and reminders. In conclusion, many factors can influence RZV series completion and adherence among adults in Canada, including cost, insurance coverage, HCP knowledge and encouragement, and reminders. Awareness of these factors may inform HCPs in helping patients overcome barriers and identify opportunities for future consideration, facilitating protection against herpes zoster.
- 1 March 1994
- Published by Elsevier in Public Health
- Vol. 108 (2) , 111-119
Subjective Health Status of Single Homeless People inSheffield
- 1 March 1994
- Published by Elsevier in Public Health
- Vol. 108 (2) , 111-119
Subjective Health Status of Single Homeless People inSheffield