Table 1. Socio-demographic characteristics of long-lived individuals and the comparison group.
| No.† | Long-lived individuals† | Comparison group† | P Value‡ | |
|---|---|---|---|---|
| Age, years, mean (SD) | 2732 | 97.4 (2.1) | 70.6 (5.3) | <0.001 |
| Female, n (%) | 2732 | 343 (78.3) | 1430 (62.3) | <0.001 |
| Illiterate, n (%) | 2707 | 346 (82.0) | 1170 (51.2) | <0.001 |
| Currently married, n (%) | 2707 | 22 (5.2) | 1667 (73.0) | <0.001 |
| Regular smoker (ever), n (%) | 2731 | 86 (19.6) | 609 (26.6) | 0.002 |
| Regular drinker (ever), n (%) | 2713 | 166 (38.5) | 681 (29.8) | <0.001 |
| Body mass index, kg/m2, mean (SD) | 2725 | 21.5 (4.2) | 24.1 (3.4) | <0.001 |
| Systolic blood pressure, mmHg, mean (SD) | 2721 | 136.7 (22.9) | 148.1 (25.0) | <0.001 |
| Diastolic blood pressure, mmHg, mean (SD) | 2731 | 80.1 (11.0) | 82.0 (13.1) | <0.001 |
| Serum lipids, mmol/L, mean (SD) | ||||
| Triglyceride | 2721 | 1.09 (0.50) | 1.43 (0.97) | <0.001 |
| HDL-C | 2721 | 1.38 (0.34) | 1.45 (0.33) | <0.001 |
| LDL-C | 2721 | 2.51 (0.70) | 2.82 (0.75) | <0.001 |
SD, standard deviation; HDL-C, high-density-lipoprotein cholesterol; LDL-C, low-density-lipoprotein cholesterol. †The numbers vary because of missing data in variables. For example, overall 2732 participants include 438 long-lived individuals and 2294 elderly individuals (comparison group). ‡P values are from the Mann–Whitney test for continuous variables or from the chi-squared test for categorical variables, 2-sided.