Table 1.

General Characteristics

	Sufficient ≥50 nmol/L (n = 1996)	Insufficient <50 nmol/L (n = 6330)	p-value *
Menopausal status, post	58.2	35.1	<0.001
Age, years	52.5 ± 0.6	44.3 ± 0.3	<0.001
Education level, ≥high school	49.2	70.0	<0.001
Living together	71	65.7	0.464
Household’s income, high	48.1	57.5	<0.001
Subjective stress, high	27.0	31.1	<0.001
Regular alcohol drinker	37.9	42.6	<0.001
Current smoker	4.1	6.4	0.009
Supplement consumption, yes	52.2	54.6	<0.001
Regular physical activity	47.2	45.1	0.106

Notes: The data are expressed as the means ± SEMs or %; * p-values of differences in 25-hydroxyvitamin D concentration using the χ²-test or t-test.