Table 3.
Baseline characteristics of participants from 2011 to 2015 according to obesity phenotype
| Characteristics | Overall (n=4,961) | NWNCO (n=2,378) | AWNCO (n=122) | NWCO (n=968) | AWCO (n=1,493) | p-value | |
|---|---|---|---|---|---|---|---|
| Age (yr) | 61.57±8.65 | 62.32±8.71 | 59.07±7.99 | 62.97±9.19 | 59.68±7.87 | <0.001 | |
| Sex | <0.001 | ||||||
| Male | 2,423 (48.8) | 1,472 (61.9) | 66 (54.1) | 332 (34.3) | 553 (37.0) | ||
| Female | 2538 (51.2) | 906 (38.1) | 56 (45.9) | 636 (65.7) | 940 (63.0) | ||
| Educational level | <0.001 | ||||||
| Never received any formal education | 2506 (50.5) | 1231 (51.8) | 54 (44.3) | 540 (55.8) | 681 (45.6) | ||
| Primary school | 1064 (21.5) | 533 (22.4) | 27 (22.1) | 175 (18.1) | 329 (22.0) | ||
| Middle school | 951 (19.2) | 426 (17.9) | 28 (23.0) | 178 (18.4) | 319 (21.4) | ||
| High school and above | 439 (8.9) | 187 (7.9) | 13 (10.7) | 75 (7.8) | 164 (11.0) | ||
| Economic status1 | <0.001 | ||||||
| Low | 1497 (30.2) | 768 (32.3) | 34 (27.9) | 316 (32.6) | 379 (25.4) | ||
| Middle | 1590 (32.1) | 778 (32.7) | 42 (34.4) | 286 (29.6) | 484 (32.4) | ||
| High | 1874 (37.8) | 832 (35.0) | 46 (37.7) | 366 (37.8) | 630 (42.2) | ||
| Residence | <0.001 | ||||||
| Rural | 3411 (68.8) | 1791 (75.3) | 75 (61.5) | 646 (66.7) | 899 (60.2) | ||
| Urban | 1550 (31.2) | 587 (24.7) | 47 (38.5) | 322 (33.3) | 594 (39.8) | ||
| Smoking history | 2112 (42.6) | 1268 (53.3) | 57 (46.7) | 313 (32.3) | 474 (31.8) | <0.001 | |
| Drinking history | 1781 (35.9) | 986 (41.5) | 46 (37.7) | 302 (31.2) | 447 (29.9) | <0.001 | |
| SBP (mmHg) | 124.68±18.70 | 122.09±18.45 | 126.74±17.71 | 126.55±19.34 | 127.41±18.21 | <0.001 | |
| DBP (mmHg) | 73.38±10.85 | 71.67±10.59 | 75.57±9.79 | 73.27±10.69 | 76.00±10.92 | <0.001 | |
| WC (cm) | 83.32±9.20 | 76.03±5.10 | 79.78±4.70 | 86.83±4.16 | 92.94±6.37 | <0.001 | |
| BMI (kg/m2) | 22.81±3.25 | 20.48±1.81 | 25.00±1.18 | 22.37±1.34 | 26.63±2.19 | <0.001 | |
Values are presented as mean±standard deviation or number (%).
NWNCO, normal weight non-central obesity; NWCO, normal weight central obesity; AWNCO, abnormal weight non-central obesity; AWCO, abnormal weight central obesity; SBP, systolic blood pressure; DBP, diastolic blood pressure; WC, waist circumstance; BMI, body mass index.
1
Economic status was evaluated by the natural logarithm of per capita expenditures and was divided into 3 groups based on tertiles.