Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of vitamin D status among premenopausal and postmenopausal women in summer and winter groups: Saudi female out-patients, January–December 2009
| Group A (summer) | Group B (winter) | ||||
|---|---|---|---|---|---|
| Group A1 (n 425; premenopausal) | Group A2 (n 234; postmenopausal) | Group B1 (n 543; premenopausal) | Group B2 (n 354; postmenopausal) | P value | |
| Deficient (%) | 80 | 68 | 85 | 76 | P = 0·035 (A2 v. B2) |
| Insufficient (%) | 8 | 12 | 9 | 15 | P > 0·05 |
| Optimal (%) | 11 | 20 | 6 | 9 | P > 0·05 |
