biostudies-literatureAkinlawon OJNIA NIH HHSNHLBI NIH HHSNIAMS NIH HHSNIH999-1007https://www.ebi.ac.uk/biostudies/studies/S-EPMC8030721biostudies-literatureUnknown151(4)<h4>Background</h4>Vitamin D deficiency has been associated with health problems globally, but there is limited information on vitamin D status and associated risk factors among adults in underserved populations.<h4>Objective</h4>This study aimed to identify risk factors for vitamin D deficiency/insufficiency among Puerto Rican adults from the Boston Puerto Rican Health Study (BPRHS).<h4>Methods</h4>A total of 822 adults (45-75 y, at baseline) were included in these analyses. Deficiency was defined as serum 25-hydroxyvitamin D [25(OH)D] <30 and insufficiency as 30 to <50 nmol/L. Dietary intake was assessed with a validated FFQ. Associations between risk factors, including dietary vitamin D, supplement use, ancestry, skin pigmentation, months in the past year spent in a southern climate, anThe Journal of nutritionRisk Factors Associated with Vitamin D Status among Older Puerto Rican Adults.PMC8030721R01 AR072741R01 AG027087K01 AR067894R01 AG055948P50 HL105185P01 AG023394Akinlawon OJNoel SETucker KLLai CQFlanagan KDfalseRisk Factors Associated with Vitamin D Status among Older Puerto Rican Adults.<h4>Background</h4>Vitamin D deficiency has been associated with health problems globally, but there is limited information on vitamin D status and associated risk factors among adults in underserved populations.<h4>Objective</h4>This study aimed to identify risk factors for vitamin D deficiency/insufficiency among Puerto Rican adults from the Boston Puerto Rican Health Study (BPRHS).<h4>Methods</h4>A total of 822 adults (45-75 y, at baseline) were included in these analyses. Deficiency was defined as serum 25-hydroxyvitamin D [25(OH)D] <30 and insufficiency as 30 to <50 nmol/L. Dietary intake was assessed with a validated FFQ. Associations between risk factors, including dietary vitamin D, supplement use, ancestry, skin pigmentation, months in the past year spent in a southern climate, an2021-01-01T00:00:00Z2021 Apr2025-04-19T20:10:41.863Z2025-04-19T20:10:41.863ZS-EPMC80307213369385710.1093/jn/nxaa426