Table 1.

Characteristics of the sample and household population aged 12 to 79 years, Canada, 2007 to 2009

Variable	Sample (Unweighted)	Population (Weighted)
	n	% (95% CI)
Sex
Female	2289	50.0 (49.2, 50.7)
Male	2109	50.0 (49.6, 50.5)
Age
12-19 years	950	12.0 (11.6, 12.4)
20-59 years	2375	69.7 (69.1, 70.4)
60-79 years	1073	18.3 (18.0, 18.5)
Ethnicity
White	3696	81.7 (74.4, 88.8)
Non-White	696	18.3 (11.0, 25.5)
Sun Exposure
< 30 min/d	833	19.2 (16.1, 22.2)
≥ 30 min/d and < 2 h/d	1210	27.5 (24.5, 30.4)
≥ 2 h/d	2350	53.4 (48.6, 58.0)
Sunscreen Use*
Never or rarely	1754	49.3 (45.4, 53.0)
Sometimes	672	18.9 (16.9, 21.0)
Often or always	1134	31.9 (28.7, 35.0)
Vitamin D Supplementation
No	3826	85.1 (78.8, 88.5)
Yes	572	14.9 (12.4, 20.4)
Milk Consumption
< Once/d	1790	42.9 (40.7, 45.2)
Once/d	1425	33.7 (32.5, 34.9)
> Once/d	1183	23.4 (21.1, 25.8)
Salt Water Fish Consumption
< Once/week	2178	49.7 (45.9, 53.5)
Once/week	1164	25.8 (24.0, 27.6)
> Once/week	1056	24.5 (21.5, 27.5)
Body Mass Index
< 25 kg/m2	1930	42.3 (37.7, 46.6)
≥ 25 and < 30 kg/m2	1453	34.7 (31.5, 37.2)
≥ 30 kg/m2	983	23.0 (19.6, 25.9)
Physical Activity Index
Inactive	2120	51.8 (46.3, 57.4)
Moderately Active	1107	24.5 (21.8, 27.1)
Active	1170	23.7 (20.1, 27.3)
Cigarette Smoking
Non-Smoker	3605	80.0 (77.0, 82.2)
Current Smoker	792	20.0 (18.1, 22.7)
Alcohol Use
Non-Drinker	1007	18.0 (16.4, 20.3)
Current Drinker	3390	82.0 (79.9, 83.4)
Season
January to March	896	21.8F (0.0, 43.6)
April to June	1269	31.4F (4.7, 58.1)
July to September	1063	20.5F (5.8, 35.2)
October to December	1170	26.3F (8.0, 44.6)
Latitude
43-44 oN	1615	38.8 (37.8, 39.8)
45-47 oN	1548	30.9 (30.7, 31.1)
49-54 oN	1235	30.3 (29.8, 30.8)

*Sunscreen use was collected only for participants who reported ≥ 30 min/d sun exposure.

^FInterpret with caution (coefficient of variation 16.6-33.3%).