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dc.contributor.authorBacon, Catherine
dc.contributor.authorKerse, N.
dc.contributor.authorHayman, K. J.
dc.contributor.authorMoyes, S. A.
dc.contributor.authorTeh, R. O.
dc.contributor.authorKepa, M.
dc.contributor.authorPillai, A.
dc.contributor.authorDyall, L.
dc.description.abstractBACKGROUND AND OBJECTIVES: This study assessed vitamin D status and its determinants in a cohort of octogenarians living within New Zealand’s Bay of Plenty and Lakes Districts. METHODS AND STUDY DESIGN: Serum 25-hydroxyvitamin D [25(OH)D] concentration was measured in 209 Māori (aged 80-90 years) and 357 non-Māori (85 years), along with demographic, lifestyle, supplement use and other health data. RESULTS: Mean [95% CI] 25(OH)D concentration was 69 [67 to 72] nmol/L, with 15% >100 nmol/Land 6 individuals >150 nmol/L. Concentrations in Māori (59 [55 to 62] 4 nmol/L) were lower than in non-Māori (75 [72 to 78] nmol/L; p<0.001), a difference maintained when adjusted for day-of-year measured. Vitamin D supplementation was reported by 98 participants (18%): including a greater proportion of women (24%) than men (11%; p<0.001) and of non-Māori (24%) than Māori (7%; p<0.001). Of those taking vitamin D, 49% took high oral doses (≥25 μg/day or equiva-lent) and five individuals took >50 μg/day. Vitamin D supplement use strongly and independently predicted seasonally adjusted 25(OH)D concentration and was associated with 28 nmol/L higher levels than non-use. Other predictors included Māori ethnicity (10nmol/L lower concentration than for non-Māori), and female gender (11 nmol/L lower). CONCLUSIONS: Vitamin D status in New Zealand octogenarians appears higher than previously re-ported, particularly in non-Māori compared to Māori. Prescribed and non-prescribed oral vitamin D supplementation is prevalent in this group and a strong indicator of vitamin D status. 新西兰毛利族和非毛利族八旬老人维生素D状况: 一项 队列研究背景与目的:本研究评估了队列研究中 生活在新西兰湾和湖泊区域的八旬老人的维生素D状况及其决定因素。 方法与研究设计: 测量209名毛利人(80-90岁)和357名非毛利人(85岁)的血清25-羟维生素D(25(OH)D)的浓度,同时收集研究对象的体格测量指标、生活方式、 补充剂的应用和其它健康资料。 结果: 平均25(OH)D浓度为69(95% CI:67-72)nmol/L,其中15%的研究对象>100 nmol/L,6个研究对象>150 nmol/L。毛利人的25(OH)D浓度(59 nmol/L,95% CI: 55-62 nmol/L)低于非毛利人(75 nmol/L,95% CI:72-78 nmol/L,p<0.001),校正测量日期后,差异仍然存在。98名(占18%)研对象报告补充了维生素D,女性中补充者所占的比例(24%)高于男性(11%,p<0.001),非毛利人中补充者所占的比例高于毛利人。补充维生素D的人中,49%的人摄入高剂量(每天≥25 μg或相当剂量),5个研究对象每天摄入维生素D≥50 μg。维生素D补充剂的应用能够强而独立地预测季节校正的25(OH)D浓度,并且使用者比不用者高28 nmol/L。其它预测指标包括毛利族(比非毛利族低10 nmol/L)和女性性别(比男性低11 nmol/L)。 结论: 新西兰八旬老人维 生素D浓度高于以前的报告,尤其是非毛利人。这个人群中处方和非处方口服维生素D补充剂普遍存在,并且是维生素状态的强预测指标。en_NZ
dc.publisherHEC PRESS (Publons Academy)en_NZ
dc.rightsAll rights reserveden_NZ
dc.subjectVitamin Den_NZ
dc.subjectNew Zealanden_NZ
dc.subjectseasonal variationen_NZ
dc.subjectethnic groupsen_NZ
dc.subjectaged 80 and overen_NZ
dc.titleVitamin D status of Māori and non-Māori octogenarians in New Zealand: a cohort study (LiLACS NZ)en_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doidoi: 10.6133/apjcn.092015.42en_NZ
dc.subject.marsden111702 Aged Health Careen_NZ
dc.subject.marsden111713 Māori Healthen_NZ
dc.identifier.bibliographicCitationBacon, C. J., Kerse, N., Hayman, K. J., Moyes, S. A., Teh, R. O., Kepa, M., Pillai, A., & Dyall, L. (2016). Vitamin D status of Māori and non-Māori octogenarians in New Zealand: a cohort study (LiLACS NZ). Asia Pacific Journal of Clinical Nutrition, 25(4), pp.885-897. doi:10.6133/apjcn.092015.42en_NZ
unitec.publication.titleAsia Pacific Journal of Clinical Nutritionen_NZ
dc.contributor.affiliationUniversity of Aucklanden_NZ
dc.subject.tukutukuHauora tinanaen_NZ
unitec.institution.studyareaHealth Sciences

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