1School of Dietetics and Human Nutrition,McGill University,Montreal,Quebec,Canada.
Public Health Nutr. 2018 Aug;21(11):1988-1994. doi: 10.1017/S1368980017004189. Epub 2018 Feb 13.
To determine the prevalence and correlates of healthy vitamin D status in lactating Inuit women living in remote regions of the Arctic.
Cross-sectional.
Households were selected randomly in thirty-six communities of Nunavut, Nunatsiavut and Inuvialuit Settlement Region. Dietary intake was assessed using a 24 h recall and an FFQ. Anthropometric measurements, household living conditions, supplement use and health status were assessed. In fasting samples, serum 25-hydroxyvitaimn D (25(OH)D) was measured using a chemiluminescent assay (LIAISON; Diasorin Inc.).
Lactating Inuit women participating in the 2007-2008 International Polar Year Inuit Health Survey conducted in the months of August to October.
Among participants (n 34), 8·8, 26·5 and 50·0 % had 25(OH)D concentrations at or above 75, 50 and 40 nmol/l, respectively. More than one-third of participants did not consume traditional foods during the previous day and only 11·3 % of total energy intake was derived from traditional foods. Only 14·7 % of the sample consumed the daily number of milk servings recommended by Canada's Food Guide (two servings) for First Nations, Inuit and Métis. Using multivariable logistic regression to examine 25(OH)D≥40 nmol/l, only higher body fat was inversely correlated with 25(OH)D concentration.
The present study is the first to assess simultaneously vitamin D status and other known factors that affect it among lactating Inuit women living in remote communities in the Arctic. Healthy maternal vitamin D status was observed in 25 % of participants during the late summer and early autumn. This requires further assessment in a larger sample spanning more seasons.
确定居住在北极偏远地区的哺乳期因纽特妇女维生素 D 健康状况的流行率和相关因素。
横断面研究。
在努纳武特、努纳恰武特和因纽特居住地区的 36 个社区中随机选择家庭。通过 24 小时回忆和食物频率问卷评估饮食摄入。人体测量、家庭生活条件、补充剂使用和健康状况进行评估。在禁食样本中，使用化学发光测定法（LIAISON；Diasorin Inc.）测量血清 25-羟维生素 D（25(OH)D）。
2007-2008 年国际极地年因纽特人健康调查期间 8 月至 10 月参加的哺乳期因纽特妇女。
在参与者（n 34）中，分别有 8.8%、26.5%和 50.0%的 25(OH)D 浓度在 75、50 和 40 nmol/l 以上。超过三分之一的参与者在前一天没有食用传统食物，只有 11.3%的总能量摄入来自传统食物。只有 14.7%的样本摄入了加拿大食物指南（两份）推荐的每日牛奶摄入量，适用于第一民族、因纽特人和梅蒂斯人。使用多变量逻辑回归来检查 25(OH)D≥40 nmol/l，只有更高的体脂与 25(OH)D 浓度呈负相关。
本研究首次同时评估了居住在北极偏远社区的哺乳期因纽特妇女的维生素 D 状况和其他影响因素。在夏末初秋，25%的参与者健康的母体维生素 D 状况。这需要在更大的样本中进行更多季节的评估。
