Key result
Greater socioeconomic deprivation linked to ~17% lower odds of well-controlled diabetes despite more eye screening.
Why the study?
Area deprivation index is linked to higher diabetes rates and worse care in non-VA settings, but its association with A1c and retinal screening in the VA healthcare system was unassessed.
Does higher socioeconomic deprivation (measured by ADI) affect glycemic control and diabetic eye screening rates in Veterans with type 2 diabetes?
Observational (n=1,990,314)
Yes
Does higher socioeconomic deprivation (measured by ADI) affect glycemic control and diabetic eye screening rates in Veterans with type 2 diabetes?
Odds Ratio: 0.83
p-value: p=<0.001
Within the VA healthcare system, greater socioeconomic deprivation is associated with worse glycemic control but higher rates of diabetic eye screening among Veterans with type 2 diabetes.
May warrant focused glycemic support for deprived veterans; extends non-VA observations but leaves causal impact open.
Introduction and Objective: Socioeconomic factors measured by area deprivation index (ADI) are associated with higher rates of diabetes and lower rates of optimal diabetes care in non-VA settings. We evaluated association of ADI with A1c and retinal screening within the VA healthcare system. Methods: Veterans with type 2 diabetes without diabetic retinopathy who attended a primary care appointment within the VA between 4/1/2023 and 3/31/2024 were included. Veteran address during the study year was mapped to ADI based on census block (higher ADI indicates greater socioeconomic deprivation). Having well-controlled diabetes (HbA1c <8% most recent in 18 months prior to 3/31/2024) and retinopathy screening were co-primary outcomes. Veterans completing an eye exam through a VA eye clinic, teleretina screening program, or VA community care within 18 months after PCP visit were considered screened. Logistic regression modeling with sandwich estimators to account for medical center clustering was used to estimate associations of ADI with outcomes, adjusting for age, gender, race, ethnicity, and number of PCP visits (only for screening outcome). Results: The cohort (n=1,990,314) was primarily male (92%), White (68.2%), non-Hispanic or Latino (89%), and mean age of 68 years. Overall eye screening rate was 77%. With increasing ADI quintile, the adjusted odds ratio (OR) for A1c <8% decreased (OR 0.94, 0.90, 0.87, and 0.83 for 2nd, 3rd, 4th, and 5th quintiles vs 1st quintile, all p<0.001). Conversely, increasing ADI quintiles were associated with greater odds of diabetic eye screening (OR 1.11, 1.22, 1.36, and 1.44 respectively, all p<0.001). Conclusion: Within the VA, greater socioeconomic deprivation was associated with worse glycemic control but higher rates of eye screening. Exploring factors associated with retinal screening, whether range of screening modalities, differing non-VA insurance options, or recognition of at-risk populations, may inform strategies for improved comprehensive diabetes care. Disclosure K. Christopher: None. G. Deitz: None. S. Raghavan: None. J. Reusch: Advisory Panel; Current; Medtronic. Funding VA-ORD (1IK2CX002805-01A1)
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CHRISTOPHER et al. (2026) conducted an observational in Type 2 diabetes without diabetic retinopathy (n=1,990,314). Area Deprivation Index (ADI) vs. 1st quintile (lowest deprivation) was evaluated on Well-controlled diabetes (HbA1c <8%) and retinopathy screening (OR 0.83, p=<0.001). Greater socioeconomic deprivation (5th vs 1st ADI quintile) was associated with lower odds of well-controlled diabetes (OR 0.83, p<0.001) but higher odds of eye screening (OR 1.44, p<0.001).
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