Age-specific Incidence (cases/1000 person-years) of diabetes by sex and ethnicity
| Age categories | South Asians (SA) | Pima | IRR | IRD | ||||
| New cases | PYR | Incidence (95% CI) | New cases | PYR | Incidence (95% CI) | Pima vs South Asians (ref) | Pima vs South Asians (ref) | |
| Men | ||||||||
| 20–24 | 13 | 1938 | 6.7 (3.9 to 11.6) | 56 | 1678 | 33.4 (24.6 to 42.1) | 6.04 (3.26, 12.04) | 27.9 (18.6, 37.1) |
| 25–34 | 61 | 4641 | 13.1 (10.2 to 16.9) | 74 | 2278 | 32.5 (25.1 to 39.9) | 2.47 (1.74, 3.53) | 19.3 (11.2, 27.5) |
| 35–44 | 117 | 5917 | 19.8 (16.5 to 23.7) | 46 | 1020 | 45.1 (32.1 to 58.1) | 2.28 (1.58, 3.23) | 25.3 (11.8, 38.8) |
| Total (Crude) | 191 | 12 497 | 15.3 (13.3 to 17.6) | 176 | 4975 | 35.4 (30.1 to 40.6) | 2.31 (1.88, 2.86) | 20.1 (14.4, 25.7) |
| Total (age standardized*) | 14.2 (12.2 to 16.2) | 37.3 (31.8 to 42.8) | ||||||
| Women | ||||||||
| 20–24 | 8 | 1851 | 4.3 (2.2 to 8.6) | 99 | 2997 | 33.0 (26.5 to 39.5) | 7.64 (3.73, 18.2) | 28.7 (21.5, 35.9) |
| 25–34 | 82 | 6869 | 11.9 (9.6 to 14.8) | 115 | 3338 | 34.5 (28.2 to 40.7) | 2.89 (2.16, 3.88) | 22.5 (15.7, 29.3) |
| 35–44 | 180 | 7440 | 24.2 (20.9 to 28) | 120 | 1785 | 67.2 (55.2 to 79.2) | 2.78 (2.19, 3.52) | 43 (30.5, 55.6) |
| Total (Crude) | 270 | 16 160 | 16.7 (14.8 to 18.8) | 334 | 8120 | 41.1 (36.7 to 45.5) | 2.46 (2.09, 2.9) | 24.4 (19.6, 29.3) |
| Total (age standardized) | 14.8 (13 to 16.5) | 46.1 (41.2 to 51.1) | ||||||
| Both sexes | ||||||||
| Total (crude) | 461 | 28 657 | 16.1 (14.7 to 17.6) | 510 | 13 096 | 38.9 (35.6 to 42.3) | 2.42 (2.13, 2.75) | 22.9 (19.2, 26.5) |
| Total (age standardized) | 14.5 (13.2 to 15.8) | 46.1 (41.2 to 51.1) | ||||||
IRR (ratio of incidence rates) calculated as Pima (Incidence rate) divided by SA (incidence rate).
IRD (risk difference, cases/1000 person years) calculated as Pima (Incidence rate) minus SA (incidence rate).
Diabetes defined as FPG≥7.00 mmol/L (126 mg/dL) or HbA1c ≥ 48 mmol/mol (6.5 %) or self-reported/physician diagnosed diabetes or medication.
*Standardized to world population.
IRD, incidence risk difference; IRR, incidence rate ratio; PYR, person year; ref, reference.