Demographic characteristics, smoking status, HbA1c measures and anthropometric measures at ages 26, 32 and 38. Proportions or SD in parentheses
| Age 26 N=977 | Age 32 N=968 | Age 38 N=958 | |
|---|---|---|---|
| Demographic characteristics | |||
| Male (%) | 498 (51.0) | 493 (50.9) | 483 (50.4) |
| Low SES* (%) | 258 (27.7) | 300 (31.0) | 186 (19.6) |
| Smoking | |||
| Current smoker† | 392 (40.2) | 327 (33.8) | 253 (26.5) |
| HbA1c measures | |||
| Mean HbA1c‡ mmol/mol (SD) | 30.7 (3.1) | 34.0 (3.6) | 35.5 (5.5) |
| Prediabetes‡ (%) | 2 (0.2) | 31 (3.6) | 155 (17.4) |
| Diabetes‡ (%) | 0 (0.0) | 1 (0.1) | 6 (0.6) |
| Dysglycemia‡ (%) | 2 (0.2) | 32 (3.7) | 161 (18.1) |
| Anthropometric measures | |||
| Mean weight in kg§ (SD) | 74.1 (14.8) | 78.2 (16.6) | 80.8 (17.4) |
| Mean BMI¶ (SD) | 25.0 (4.4) | 26.2 (5.0) | 27.2 (5.3) |
| Mean WC in mm** (SD) | 801.4 (99.6) | 844.5 (114.0) | 864.1 (126.4) |
| Mean waist-hip ratio†† (SD) | 0.80 (0.07) | 0.83 (0.07) | 0.85 (0.08) |
| Mean waist-height ratio** (SD) | 0.47 (0.06) | 0.49 (0.06) | 0.50 (0.07) |
| High BMI group¶ (%) | 110 (11.8) | 164 (15.9) | 227 (24.4) |
| High WC group** (%) | 63 (6.8) | 144 (15.5) | 191 (18.5) |
| High waist-hip group†† (%) | 60 (6.5) | 198 (21.4) | 316 (34.1) |
| High waist-height group** (%) | 208 (20.1) | 346 (37.3) | 422 (45.3) |
*N=933 at age 26, 967 at age 32, and 950 at age 38.
†N=976 at age 26, and 954 at age 38.
‡N=836 at age 26, 858 at age 32, and 891 at age 38.
§N=936 at age 26, 926 at age 32, and 936 at age 38.
¶N=936 at age 26, 926 at age 32, and 931 at age 38.
**N=924 at age 26, 927 at age 32, and 932 at age 38.
††N=924 at age 26, 927 at age 32, and 928 at age 38.
High BMI group: ≥30. High WC group: women ≥880 mm, men ≥1020 mm. High waist-hip ratio group: women ≥0.85, men ≥0.90. High waist-height ratio group: ≥0.50.
BMI, body mass index; HbA1c, glycated hemoglobin; SES, socioeconomic status; WC, waist circumference.