Crude rates of infections stratified by age group and maternal body mass index
| <1 year | 1–<2 years | 2–<5 years | 5–<15 years | |||||
| Rate | RD | Rate | RD | Rate | RD | Rate | RD | |
| Total infection | ||||||||
| Underweight | 298.5 | 20.4 | 232 | −1.4 | 162.5 | 10.8 | 58.7 | 6.7 |
| Healthy weight | 278.1 | – | 233.4 | – | 151.7 | – | 52 | – |
| Overweight | 289.3 | 11.2 | 249.7 | 16.3 | 158.3 | 6.7 | 57.9 | 5.9 |
| Obese grade 1 | 307.1 | 29 | 268.6 | 35.1 | 180.1 | 28.4 | 64.2 | 12.2 |
| Obese grades 2 and 3 | 323 | 44.9 | 261.9 | 28.5 | 178.1 | 26.4 | 69.5 | 17.5 |
| Total | 291.7 | – | 246.8 | – | 161.5 | – | 57.8 | – |
| Upper respiratory tract infection | ||||||||
| Underweight | 111.5 | 12.4 | 98.3 | 8.6 | 71.2 | 8.8 | 21.8 | 2.4 |
| Healthy weight | 99.1 | – | 89.7 | – | 62.3 | – | 19.4 | – |
| Overweight | 105.7 | 6.6 | 97.6 | 7.9 | 65.3 | 2.9 | 20.8 | 1.4 |
| Obese | 111.4 | 12.3 | 100.2 | 10.5 | 71.9 | 9.5 | 24.5 | 5 |
| Total | 105 | – | 95.3 | – | 66.2 | – | 21.3 | – |
| Lower respiratory tract | ||||||||
| Underweight | 15.6 | −1.6 | 14 | −2.1 | 10.8 | 1.6 | 2.7 | 0.9 |
| Healthy weight | 17.2 | – | 16.1 | – | 9.2 | – | 1.8 | – |
| Overweight | 17.2 | 0 | 16.7 | 0.6 | 9.4 | 0.2 | 2.5 | 0.7 |
| Obese | 22.2 | 5 | 19.4 | 3.3 | 11.9 | 2.7 | 2.7 | 0.9 |
| Total | 18.4 | – | 17 | – | 10 | – | 2.3 | – |
| Skin/soft tissue | ||||||||
| Underweight | 99.6 | 12.9 | 53.5 | 6.1 | 31.1 | 2.1 | 17.7 | 2.9 |
| Healthy weight | 86.6 | – | 47.4 | – | 29 | – | 14.8 | – |
| Overweight | 86.6 | 0 | 49.7 | 2.3 | 30.8 | 1.8 | 16.1 | 1.2 |
| Obese | 92.8 | 6.2 | 52.2 | 4.8 | 34.9 | 5.9 | 17.7 | 2.9 |
| Total | 88.9 | – | 49.7 | – | 31.2 | – | 16.1 | – |
| Genitourinary | ||||||||
| Underweight | 1.3 | −1.8 | 0.6 | −2.8 | 3.8 | −1.8 | 2.9 | −0.4 |
| Healthy weight | 3.1 | – | 3.5 | – | 5.7 | – | 3.3 | – |
| Overweight | 3 | −0.1 | 3.6 | 0.2 | 5.4 | −0.3 | 3.2 | −0.1 |
| Obese | 3.9 | 0.9 | 3.5 | 0.1 | 5.7 | 0 | 3.7 | 0.4 |
| Total | 3.2 | – | 3.4 | – | 5.5 | – | 3.4 | – |
| Gastrointestinal | ||||||||
| Underweight | 18.4 | 2.7 | 16.1 | 2.2 | 8 | 2.3 | 2.4 | 0.6 |
| Healthy weight | 15.6 | – | 13.9 | – | 5.7 | – | 1.8 | – |
| Overweight | 16.2 | 0.6 | 15.2 | 1.3 | 6 | 0.3 | 1.9 | 0.2 |
| Obese | 16.3 | 0.6 | 16.2 | 2.3 | 6.6 | 0.9 | 2.1 | 0.3 |
| Total | 16.1 | – | 15 | – | 6.1 | – | 1.9 | – |
| Multisystem viral | ||||||||
| Underweight | 9.2 | 0.6 | 9 | −1.2 | 8.7 | 0.2 | 3.1 | 0.7 |
| Healthy weight | 8.6 | – | 10.3 | – | 8.5 | – | 2.4 | – |
| Overweight | 8.8 | 0.2 | 10.4 | 0.2 | 9.1 | 0.6 | 2.3 | −0.1 |
| Obese | 7.8 | −0.9 | 10.6 | 0.3 | 8.4 | −0.1 | 2.7 | 0.3 |
| Total | 8.5 | 10.3 | 8.7 | – | 2.5 | – | ||
Rate, rate/100 person-years; RD, rate difference.