Sleep duration is associated with vitamin D deficiency in older women living in Macao, China: A pilot cross-sectional study

• DOI: 10.1371/journal.pone.0229642
• Publication Date: 2020-03-04T18:34:12Z
• Authors: Xiaoying Liu; Liang Ke; Jacky Ho; Myriam Abboud; Elias Mpofu; Tara C. Brennan-S...; Rebecca S. Mason; Kaye E. Brock
• Keywords: Cross-sectional study; Sleep

Chinese women are known to have both a high prevalence of metabolic syndrome (MetS) and vitamin D deficiency (serum 25-hydroxyvitamin (25OHD) <50 nmol/l). Associations between sleep duration circulating 25OHD recently been reported but, our knowledge, these associations not studied in older populations. We thus investigated whether was associated with status population from Macao, China, modified the association MetS deficiency. In 207 (>55 years) Macanese, anthropometry, blood samples validated questionnaires, including cardiovascular risk factors, were simultaneously collected. On multivariable categorical analyses, those women, men, who had short (≤6 hours (h)) at 2-fold for (both nmol/L <37 nmol/L; OR = 1.94, 95%CI 1.29–2.92; 2.05, 1.06–3.98, respectively) longer (>8 h) 3-fold more likely (OR 3.07, 1.47–6.39; 2.75, 1.08–7.00, compared normal (6–8 h). Both men (women: 2.04, 1.31–3.17; 2.15, 1.11–4.17, respectively; men: 2.01, 1.23–3.28; 1.00–4.29, respectively). Moreover, an increased 3.26, 1.10–9.64). These found sleep. Men 5-fold 5.22; 2.70–10.12). This non-significant shorter conclude that long women. Further research is needed larger cohorts or intervention studies further examine reduced sleep,