Region of origin and environmental factors
| Characteristic | % (n/N*) |
|---|---|
| *The denominator indicates the number of subjects in each category for whom data were available. | |
| Region of origin | |
| Indian subcontinent | 36.6 (45/123) |
| Middle East | 32.5 (41/123) |
| African | 11.2 (14/123) |
| Polynesian | 7.1 (9/123) |
| Australia (white Australian) | 4.0 (5/123) |
| Northern Asia | 3.2 (4/123) |
| South East Asia | 3.2 (4/123) |
| Central Asia | 0.8 (1/123) |
| Dietary history | |
| Breast fed | 70.7 (75/106) |
| Exclusively breast fed | 31.1 (33/106) |
| Prolonged breast feeding >1 year | 24.5 (26/106) |
| Sunlight exposure | |
| Minimal | 53.1 (51/96) |
| None | 35.4 (34/96) |
| Normal | 11.5 (11/96) |
| Born in Australia | 79.1 (88/110) |
| If not, time spent in Australia | |
| <1 year | 77.3 (17/22) |
| 1–5 years | 18.2 (4/22) |
| >5 years | 4.3 (1/22) |