Participants' demographic and health characteristics
| Demographic variables | All (n=287) | Participants with NFG (n=249) | Participants with diabetes (n=26) |
|---|---|---|---|
| Female, n (%) | 132 (46.0) | 118 (47.4) | 9 (34.6) |
| Age*, years (SD) | 63.0 (1.4) | 63.0 (1.4) | 63.2 (1.2) |
| Education*, years (SD) | 14.2 (2.5) | 14.3 (2.5) | 13.3 (2.6)† |
| Caucasian (%) | 273 (95.1) | 238 (95.6) | 25 (96.2) |
| Hypertension, n* (%) | 183 (63.8) | 160 (64.3) | 18 (69.2) |
| BMI* (SD) | 26.6 (4.1) | 26.1 (4.4) | 27.1 (4.8)† |
| Plasma glucose*, mmol/L (SD) | 5.2 (1.1) | 4.9 (0.6) | 7.2 (2.4)‡ |
| Goldberg Depression Scale* (SD) | 1.5 (1.8) | 1.4 (1.7) | 2.0 (2.5) |
| Smoking* (%) | 120 (41.8) | 146 (58.6) | 10 (38.5) |
*At wave 1.
†p<0.05 compared to NFG.
‡p<0.01 compared to NFG.
BMI, body mass index; NFG, normal fasting plasma glucose levels.