Brenda T. Fenton
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Brenda T. Fenton has a total of 23 co-authors. Here are the top co-authors by number of shared publications:
- Elizabeth K. Seng
Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, United States
3 shared publications - Jason Jonathon Sico
Research, Education, Evaluation and Engagement Activities Center for Headache, Headache Centers of Excellence, US Department of Veterans Affairs (VA), Orange, CT
3 shared publications Addison Kimber
Research, Education, Evaluation and Engagement Activities Center for Headache, Headache Centers of Excellence US Department of Veterans Affairs Orange Connecticut USA
1 shared publication- Addison L. Kimber
Department of Veterans Affairs, Veterans Health Administration Headache Centers of Excellence (HCoE) Research, Education, Evaluation and Engagement Activities Center for Headache, Orange, CT, USA
1 shared publication Alexander B. Guirguis
VA Connecticut Healthcare System West Haven Connecticut USA
1 shared publication- Amy S. Grinberg
VA Connecticut Healthcare System, West Haven, CT, USA
1 shared publication
Latest Publications
- 1 June 2026
- Published by Wolters Kluwer Health in Neurology Clinical Practice
- Vol. 16 (3) , e200618
Association of Military Sexual Trauma With Migraine and Migraine-Related Health Care Utilization Among Post-9/11 US Veterans
Military sexual trauma (MST) is increasingly recognized in US veterans. MST is associated with psychiatric disease, substance abuse, and pain conditions, including headache. Little is known about the relationship between MST and specific headache disorders. This retrospective cross-sectional study analyzed administrative data from the Women Veterans Cohort Study, a sample of post-9/11 US veterans enrolled for Veterans Health Administration care. A positive MST screen in the electronic medical record defined exposure. We extracted demographic and clinical data from administrative coding for migraine and relevant confounders, comparing between subgroups with χ2 tests. Health care utilization variables included designated sites of care and prescribed acute and preventive treatments and were evaluated with multivariable logit, negative binomial (nb), and zero-inflated nb models. Of 846,435 veterans screened for MST, 4.4% of veterans had a positive screen, whereas 9.5% had migraines. Veterans with migraine and a positive MST screen (21.7%) were more often non-White (45.3% vs 38.6%, p < 0.001), and 33 or less years old (55% vs 53%, p < 0.001) than veterans with migraine and a negative MST screen (9.0%). Adjusting for sex, the odds of migraine were greater for veterans with a positive MST screen (OR 1.62, 95% CI 1.57-1.67). Veterans with migraine and a positive MST screen were no more likely to receive triptan medications than veterans with migraine (46.2% vs 45.7%, p = 0.47) although were more likely to be prescribed opioids (36.1% vs 33.4%, p ≤ 0.001), compared with those with migraine and a negative MST screen. After controlling for sex, comorbidities (including chronic pain conditions), treatments, and other health care use, health care utilization was increased among migraine veterans with a positive MST screen, compared with migraine veterans without a positive MST screen for primary care (IRR 1.06, 95% CI 1.04-1.08, p < 0.001) and emergency department care (IRR 1.14, (95% CI 1.07-1.22), whereas neurology visits were not increased (IRR 0.97, 95% CI 0.92-1.02). Veterans with a positive MST screen constitute a vulnerable population more likely to have migraine, take opioid medications, and use emergency departments for migraine care.
- 1 June 2026
- Published by Wolters Kluwer Health in Neurology Clinical Practice
- Vol. 16 (3) , e200618
Association of Military Sexual Trauma With Migraine and Migraine-Related Health Care Utilization Among Post-9/11 US Veterans
Military sexual trauma (MST) is increasingly recognized in US veterans. MST is associated with psychiatric disease, substance abuse, and pain conditions, including headache. Little is known about the relationship between MST and specific headache disorders. This retrospective cross-sectional study analyzed administrative data from the Women Veterans Cohort Study, a sample of post-9/11 US veterans enrolled for Veterans Health Administration care. A positive MST screen in the electronic medical record defined exposure. We extracted demographic and clinical data from administrative coding for migraine and relevant confounders, comparing between subgroups with χ2 tests. Health care utilization variables included designated sites of care and prescribed acute and preventive treatments and were evaluated with multivariable logit, negative binomial (nb), and zero-inflated nb models. Of 846,435 veterans screened for MST, 4.4% of veterans had a positive screen, whereas 9.5% had migraines. Veterans with migraine and a positive MST screen (21.7%) were more often non-White (45.3% vs 38.6%, p < 0.001), and 33 or less years old (55% vs 53%, p < 0.001) than veterans with migraine and a negative MST screen (9.0%). Adjusting for sex, the odds of migraine were greater for veterans with a positive MST screen (OR 1.62, 95% CI 1.57-1.67). Veterans with migraine and a positive MST screen were no more likely to receive triptan medications than veterans with migraine (46.2% vs 45.7%, p = 0.47) although were more likely to be prescribed opioids (36.1% vs 33.4%, p ≤ 0.001), compared with those with migraine and a negative MST screen. After controlling for sex, comorbidities (including chronic pain conditions), treatments, and other health care use, health care utilization was increased among migraine veterans with a positive MST screen, compared with migraine veterans without a positive MST screen for primary care (IRR 1.06, 95% CI 1.04-1.08, p < 0.001) and emergency department care (IRR 1.14, (95% CI 1.07-1.22), whereas neurology visits were not increased (IRR 0.97, 95% CI 0.92-1.02). Veterans with a positive MST screen constitute a vulnerable population more likely to have migraine, take opioid medications, and use emergency departments for migraine care.
- Open Access
- 11 June 2025
- Published by SAGE Publications in Journal of Patient Experience
- Vol. 12
Patient Satisfaction in the Headache Care at the Veterans Health Administration Headache Centers of Excellence: A Cross-Sectional Study
This cross-sectional study compared patient satisfaction with headache care in Veterans Health Administration (VHA) Headache Centers of Excellence (HCoE) and HCoE facilities versus traditional headache care. Using the VHA Survey of Healthcare Experiences of Patients specialty care survey, we analyzed responses from 4317 (14% response rate) veterans with a VHA headache visit who received care from (1) a Veterans Affairs (VA) HCoE provider; (2) a non-HCoE provider within a VA medical center containing an HCoE; or (3) a provider in a VA medical center without an HCoE. Compared to patients at non-HCoE facilities, both HCoE patients and HCoE facility patients reported higher overall satisfaction with their VHA care in general (OR = 1.32, 95% CI = 1.05-1.64; OR = 1.46, 95% CI = 1.38-1.54), respectively. Despite a modest response rate, HCoE and HCoE facility patients reported significantly higher satisfaction across other domains including access and communication, in models adjusting for demographics. These findings advance the conversation regarding the value of HCoEs in delivering high-quality, patient-centered care and expanding HCoE resources may improve satisfaction. Future research should formally investigate methods of improving satisfaction.
- 11 June 2025
- Published by SAGE Publications in Journal of Patient Experience
- Vol. 12
Open AccessPatient Satisfaction in the Headache Care at the Veterans Health Administration Headache Centers of Excellence: A Cross-Sectional Study
This cross-sectional study compared patient satisfaction with headache care in Veterans Health Administration (VHA) Headache Centers of Excellence (HCoE) and HCoE facilities versus traditional headache care. Using the VHA Survey of Healthcare Experiences of Patients specialty care survey, we analyzed responses from 4317 (14% response rate) veterans with a VHA headache visit who received care from (1) a Veterans Affairs (VA) HCoE provider; (2) a non-HCoE provider within a VA medical center containing an HCoE; or (3) a provider in a VA medical center without an HCoE. Compared to patients at non-HCoE facilities, both HCoE patients and HCoE facility patients reported higher overall satisfaction with their VHA care in general (OR = 1.32, 95% CI = 1.05-1.64; OR = 1.46, 95% CI = 1.38-1.54), respectively. Despite a modest response rate, HCoE and HCoE facility patients reported significantly higher satisfaction across other domains including access and communication, in models adjusting for demographics. These findings advance the conversation regarding the value of HCoEs in delivering high-quality, patient-centered care and expanding HCoE resources may improve satisfaction. Future research should formally investigate methods of improving satisfaction.
- Open Access
- 19 August 2023
- Published by Wiley in Headache: The Journal of Head and Face Pain
- Vol. 63 (9) , 1295-1303
Changes in opioid prescribing in veterans with headache during the COVID‐19 pandemic: A regression discontinuity in time analysis
Objective: To determine changes in opioid prescribing among veterans with headaches during the coronavirus disease of 2019 (COVID‐19) pandemic by comparing the stay‐at‐home phase (March 15 to May 30, 2020) and the reopening phase (May 31 to December 31, 2020). Background: Opioid prescribing for chronic pain has declined substantially since 2016; however, changes in opioid prescribing during the COVID‐19 pandemic among veterans with headaches remain unknown. Methods: This retrospective cohort study utilized regression discontinuity in time and difference‐in‐differences design to analyze veterans aged ≥18 years with a previous diagnosis of headache disorders and an outpatient visit to the Veterans Health Administration (VHA) during the study period. We measured the weekly number of opioid prescriptions, the number of days supplied, the daily dose in morphine milligram equivalents (MMEs), and the number of prescriptions with ≥50 morphine equivalent daily doses (MEDD). Results: A total of 81,376 veterans were analyzed with 589,950 opioid prescriptions. The mean (SD) age was 51.6 (13.5) years, 57,242 (70.3%) were male, and 53,464 (65.7%) were White. During the pre‐pandemic period, 323.6 opioid prescriptions (interquartile range 292.1–325.8) were dispensed weekly, with an median (IQR) of 24.1 (24.0–24.4) days supplied and 31.8 (31.2–32.5) MMEs. Transition to stay‐at‐home was associated with a 7.7% decrease in the number of prescriptions (incidence rate ratio [IRR] 1.077, 95% confidence interval [CI] 0.866–0.984) and a 9.8% increase in days supplied (IRR 1.098, 95% CI 1.078–1.119). Similar trends were observed during the reopening period. Subgroup analysis among veterans on long‐term opioid therapy also revealed 1.7% and 1.4% increases in days supplied during the stay‐at‐home (IRR 1.017, 95% CI 1.009–1.025) and reopening phase (IRR 1.014, 95% CI 1.007–1.021); however, changes in the total number of prescriptions, MME/day, or the number of prescriptions >50 MEDD were insignificant. Conclusion: Prescription opioid access was maintained for veterans within VHA during the pandemic. The de‐escalation of opioid prescribing observed prior to the pandemic was not seen in our study.
- 19 August 2023
- Published by Wiley in Headache: The Journal of Head and Face Pain
- Vol. 63 (9) , 1295-1303
Open AccessChanges in opioid prescribing in veterans with headache during the COVID‐19 pandemic: A regression discontinuity in time analysis
Objective: To determine changes in opioid prescribing among veterans with headaches during the coronavirus disease of 2019 (COVID‐19) pandemic by comparing the stay‐at‐home phase (March 15 to May 30, 2020) and the reopening phase (May 31 to December 31, 2020). Background: Opioid prescribing for chronic pain has declined substantially since 2016; however, changes in opioid prescribing during the COVID‐19 pandemic among veterans with headaches remain unknown. Methods: This retrospective cohort study utilized regression discontinuity in time and difference‐in‐differences design to analyze veterans aged ≥18 years with a previous diagnosis of headache disorders and an outpatient visit to the Veterans Health Administration (VHA) during the study period. We measured the weekly number of opioid prescriptions, the number of days supplied, the daily dose in morphine milligram equivalents (MMEs), and the number of prescriptions with ≥50 morphine equivalent daily doses (MEDD). Results: A total of 81,376 veterans were analyzed with 589,950 opioid prescriptions. The mean (SD) age was 51.6 (13.5) years, 57,242 (70.3%) were male, and 53,464 (65.7%) were White. During the pre‐pandemic period, 323.6 opioid prescriptions (interquartile range 292.1–325.8) were dispensed weekly, with an median (IQR) of 24.1 (24.0–24.4) days supplied and 31.8 (31.2–32.5) MMEs. Transition to stay‐at‐home was associated with a 7.7% decrease in the number of prescriptions (incidence rate ratio [IRR] 1.077, 95% confidence interval [CI] 0.866–0.984) and a 9.8% increase in days supplied (IRR 1.098, 95% CI 1.078–1.119). Similar trends were observed during the reopening period. Subgroup analysis among veterans on long‐term opioid therapy also revealed 1.7% and 1.4% increases in days supplied during the stay‐at‐home (IRR 1.017, 95% CI 1.009–1.025) and reopening phase (IRR 1.014, 95% CI 1.007–1.021); however, changes in the total number of prescriptions, MME/day, or the number of prescriptions >50 MEDD were insignificant. Conclusion: Prescription opioid access was maintained for veterans within VHA during the pandemic. The de‐escalation of opioid prescribing observed prior to the pandemic was not seen in our study.