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Serum vitamin D status of New Zealanders: results from a national nutrition survey
Author(s) -
Skeaff Clark Murray,
Williams Sheila M,
Brown Rachel C,
Parnell Winsome R
Publication year - 2013
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.27.1_supplement.347.4
Subject(s) - christian ministry , vitamin d and neurology , national health and nutrition examination survey , vitamin d deficiency , medicine , demography , zoology , chemistry , endocrinology , biology , population , environmental health , political science , sociology , law
Serum 25‐hydroxyvitamin D concentrations were measured, using LC‐tandem mass spectrometry, in 3009 individuals, 15 y or over, participating in the 2008/09 New Zealand Adult Nutrition Survey. Mean serum 25‐hydroxyvitamin D concentration was 61 nmol/L (95%CI, 59 to 63 nmol/L) and was highest in Jan, at 79 nmol/L (71, 86), and lowest in Sep, at 47 nmol/L (44, 51). The prevalence of serum 25‐hydroxyvitamin D concentrations below the deficiency level of 25 nmol/L was 6% (95%CI, 5 to 7%) and below the recommended target of 50 nmol/L was 37% (34, 40). The results of multiple regression analysis showed that the adjusted mean serum 25‐hydroxyvitamin D concentration was 11 nmol/L (95%CI, 8 to 14) lower in Pacific than “New Zealand European and Other” people, 7 nmol/L (4, 10) lower in obese than normal weight individuals, 10 nmol/L (6, 14) lower in those in highest compared with lowest category of economic deprivation, and 13 nmol/L (7, 18) lower at the highest compared with lowest latitude in the Country. Approximately one third of New Zealanders do not meet the recommended targets for serum vitamin D status. Funding: The Ministry of Health, New Zealand, funded the 2008/09 New Zealand Adult Nutrition Survey.