Table 1.

Levels of vitamin D detected in 272 patients.

Age (years)	n	Vitamin D level (mcg/l), mean (SD)	Range
<15	23	8.3 (4.52)	2.5–17.9
15–64	228	6.8 (3.61)	1.0–19.0
>64	21	8.9 (4.27)	2.8–16.0
Females, 18–44 years	141	5.9 (2.89)	1.0–16.3

Reference range provided by local laboratories = 19–57 mcg/l. SD = standard deviation