Table 5.
Comparison of serum 25(OH)D concentrations among participants of Q2017 Health Survey with previous studies on the Canadian general population and Inuit from Canada, Greenland and Alaska
| Study (year(s)) | Study population | Season and year of data collection | Serum 25(OH)D arithmetic mean in nmol/l (variability) | Serum 25(OH)D geometric mean or median in nmol/l (variability) |
|---|---|---|---|---|
| Qanuilirpitaa? Nunavik Inuit health survey (2017) | Inuit (>15 years) (n 1,155) | August–October 2017 | Men: 73·4 (69·8, 77·0); women: 73·5 (71·0, 76·1) | Men: 65·4 (62·3, 68·7)*; women: 65·2|| (63·0, 67·6)* |
| Canadian health measures survey (2007–2009) | Canadians (19–79 years) excluding Inuit Nunangat (n 3,562) | April–October 2007–2009 | Men: 64·7 (61·0, 68·3) women: 72·0 (68·6, 75·4) |
N/R |
| International polar year survey Inuit health survey (2007–2008) | Inuit (>18 years) in Nunavut, Inuvialuit Settlement Region and Nunatsiavut (n 2,207) | August–October 2007–2008 | N/R | Men: 55·2¶ (34·7, 79·4)†; women: 51·7¶ (30·9, 78·6)† |
| Inuit health in transition (2005–2010) | Inuit (≥18 years) residing in nine towns and 13 villages (n 1,764) | Data collected during all months except July, November and December between 2005 and 2010 | N/R | All participants: 43·4|| (41·8, 45·7)* |
| Andersen et al., (2018) | Inuit (50–59 years old) residing in Nuuk or Ammassalik District, Greenland (n 434) | N/R | N/R | All participants: 64¶ (25, 54) ‡ |
| Andersen et al., (2012) | Inuit (30–49 years) in Saqqaq and Ilulissat, Greenland (n 64) | Summer 2002 | N/R | All participants: 44·7¶ (36·4, 59·4)‡ |
| Frost and Hill (2008) | Non-random sample of Alaska Natives (n 83) | 2-y period between April 2005 and March 2007 | All participants: 42·8 (±27·5)§ | N/R |
Q2017 Health Survey, Qanuilirpitaa? 2017 Inuit Health Survey; N/R, not reported.
*
95 % CI.
†
Interquartile range.
‡
25, 75 percentiles.
§
sd.
||
Geometric mean.
¶
Median.