Frequency distribution of the total study sample with an available recorded value for serum vitamin D during the year 2017
| N | % | |
| Age group in years | ||
| 18–29 | 23 348 | 22.8 |
| 30–39 | 30 889 | 30.2 |
| 40–49 | 24 736 | 24.2 |
| 50–65 | 23 369 | 22.8 |
| Total | 102 342 | 100.0 |
| Gender | ||
| Female | 67 393 | 65.9 |
| Male | 34 946 | 34.1 |
| Total | 102 339 | 100.0 |
| Nationality | ||
| Other nationalities | 72 314 | 70.7 |
| Qatari | 30 028 | 29.3 |
| Total | 102 342 | 100.0 |
| Vitamin D therapy before the last serum vitamin D test | ||
| No | 70 818 | 68.9 |
| Yes | 31 903 | 31.1 |
| Total | 102 721 | 100.0 |
| BMI measurement | ||
| Acceptable (<25) | 18 108 | 23.2 |
| Overweight (25–29.9) | 26 523 | 34.0 |
| Grade 1 or low risk obesity (30–34.9) | 19 549 | 25.1 |
| Grade 2 or moderate risk obesity (35–39.9) | 9008 | 11.6 |
| Grade 3 obesity (morbid obesity) (40+) | 4779 | 6.1 |
| Total | 77 967 | 100.0 |
BMI, body mass index.