Table 1.

Median 25 hydroxyvitamin D level for the Calgary population studied, and the proportion of the population below levels representing the Institute Of Medicine’s[31]categories of vitamin adequacy: deficiency (<30 nmol/L), estimated average requirement (40 nmol/L) and recommended dietary allowance (50 nmol/L)

	Males	Females
Median 25 hydroxyvitamin D level	65	71
Proportion of individuals <30 nmol/L	0.10	0.07
Proportion of individuals <40 nmol/L	0.19	0.15
Proportion of individuals <50 nmol/L	0.30	0.24