Table 1.
Comparison of Characteristics among Middle Aged and Oldest-old Residents in Chinese Longevity Areas
| Characteristics | Middle-aged (40–59) (n=268) |
Oldest-old (90+) (n=506) |
Statistical Value |
P Value |
|---|---|---|---|---|
| Age (years)* | 50.5(5.7) | 97.4 (5.0) | ||
| Education? | ||||
| Illiterate | 83 (31.0) | 484 (95.7) | ||
| Primary School | 46 (17.2) | 11 (2.2) | ||
| Junior high school and above | 139(51.8) | 8 (1.6) | 384.3086 | <0.0001 |
| Not answer | 3 (0.6) | |||
| Family Income yuan/year* | 23494.3 (26395.4) | 23638.8 (30655.5) | 0.01 | 0.9116 |
| WC (cm)* | 83.3 (11.7) | 75.5 (11.5) | 67.07 | <0.0001 |
| SBP (mmHg)* | 128.5 (19.1) | 139.2 (26.8) | 51.42 | <0.0001 |
| DBP (mmHg)* | 81.2 (12.9) | 79.4 (14.8) | 0.02 | 0.8855 |
| FBG (mmol/L)* | 5.60 (2.31) | 5.47 (1.79) | 0.86 | 0.3551 |
| TG (mmol/L)* | 1.79 (2.02) | 1.14 (0.51) | 46.71 | <0.0001 |
| TC (mmol/L)* | 4.54 (1.08) | 4.08 (1.07) | 32.29 | <0.0001 |
| LDL-C (mmol/L)* | 2.51 (0.76) | 2.17 (0.80) | 32.93 | <0.0001 |
| HDL-C (mmol/L)* | 1.31 (0.40) | 1.31 (0.32) | 0.00 | 0.9864 |
| Current smoker? | 111 (41.4) | 136 (26.9) | 16.6623 | <0.0001 |
| Alcohol drinker ? | 107 (39.9) | 122 (24.1) | 20.7305 | <0.0001 |
Note.
*
Data listed as mean±SD deviation for continuous variables, were tested for differences by age group by using covariance analysis after adjustment for study site.
?
Data listed as n (%) for categorical variables were tested by CMH statistics by age group after adjustment for study site.