Table 2.
Baseline characteristics according to body mass index in middle-aged Japanese men and women
| Body mass index | |||||
|---|---|---|---|---|---|
| <19.0 | 19.0–20.9 | 21.0–22.9 | 23.0–24.9 | ≥25.0 | |
| Men (n = 35,365) | |||||
| No. of participants | 1,447 | 4,904 | 8,621 | 10,341 | 10,052 |
| Age (years) | 53.6 | 52.5 | 51.8 | 51.3 | 50.7 |
| Smoking status (%) | |||||
| Nonsmokers | 27.9 | 28.9 | 33.5 | 38.4 | 41.9 |
| Current smokers | 58.9 | 56.6 | 50.0 | 42.8 | 38.4 |
| Ex-smokers | 13.2 | 14.5 | 16.5 | 18.8 | 19.7 |
| Alcohol intakea (%) | |||||
| ALC_0 | 30.9 | 27.8 | 25.2 | 24.4 | 25.8 |
| ALC_1 | 40.4 | 41.1 | 42.4 | 44.3 | 43.6 |
| ALC_2 | 28.7 | 31.1 | 32.4 | 31.3 | 30.6 |
| History of hypertension (%) | 13.5 | 13.2 | 16.5 | 19.8 | 25.2 |
| History of diabetes (%) | 2.8 | 3.0 | 3.4 | 3.4 | 3.9 |
| Women (n = 40,825) | |||||
| No. of participants | 2,202 | 5,975 | 10,484 | 10,121 | 12,043 |
| Age (years) | 52.6 | 51.1 | 51.5 | 51.5 | 52.3 |
| Smoking status (%) | |||||
| Nonsmokers | 91.2 | 93.1 | 94.7 | 95.2 | 94.8 |
| Current smokers | 8.0 | 6.1 | 4.5 | 4.1 | 4.2 |
| Ex-smokers | 0.8 | 0.8 | 0.8 | 0.7 | 1.0 |
| Alcohol intakea (%) | |||||
| ALC_0 | 83.0 | 81.5 | 81.4 | 82.3 | 85.0 |
| ALC_1 | 9.7 | 11.6 | 12.0 | 11.8 | 10.1 |
| ALC_2 | 7.3 | 6.9 | 6.6 | 5.9 | 4.9 |
| History of hypertension (%) | 11.4 | 11.9 | 15.4 | 19.9 | 29.4 |
| History of diabetes (%) | 1.7 | 1.4 | 1.3 | 1.7 | 2.9 |
aAlcohol intake (g/week ethanol), ALC_0: nondrinkers and infrequent occasional drinkers for men and women, ALC_1: 1–299 g/week for men and 1–59 g/week for women, ALC_2: ≥300 g/week for men and ≥60 g/week for women