Table 1. Baseline characteristics of the participants of Aichi Workers' Cohort Study, stratified by sex.
| Characteristics | Men (n=3317) | Women (n=917) |
|---|---|---|
| Age (%) | ||
| <50 years | 56.0 | 63.7 |
| ⩾50 years | 44.0 | 36.3 |
| Smoking status (%) | ||
| Never smoker | 37.6 | 88.8 |
| Former smoker | 28.0 | 4.6 |
| Current smoker | 34.3 | 6.7 |
| Alcohol drinking (%) | ||
| <1 occasion per week | 26.6 | 56.8 |
| 1–4 occasions per week | 25.8 | 24.4 |
| 5–7 occasion per week | 47.6 | 18.8 |
| Breakfast eating (%) | ||
| Everyday eater | 80.5 | 74.3 |
| Non-everyday eater | 19.5 | 25.7 |
| Sleep duration (%) | ||
| ⩾7 h per day | 48.0 | 35.0 |
| <7 h per day | 52.0 | 65.0 |
| Regular physical activity (%) | ||
| Yes | 59.0 | 44.8 |
| No | 41.0 | 55.2 |
| Family history of diabetes (%) | ||
| No | 86.0 | 80.7 |
| Yes | 14.0 | 19.3 |
| Fasting blood glucose (%) | ||
| <100 mg dl−1 | 80.2 | 88.3 |
| ⩾100 mg dl−1 | 19.8 | 11.7 |
| Baseline overweight (%) | ||
| No (BMI<25) | 76.4 | 88.9 |
| Yes (BMI⩾25) | 23.6 | 11.1 |
| Weight-change slope (kg per year) | 0.30 (0.28) | 0.14 (0.27) |
| Weight fluctuation (kg) | 1.60 (1.21) | 1.33 (1.07) |
Abbreviation: BMI, body mass index.
The Data was shown as percentages for categorical variables and mean (s.d.) for continuous variables.