Table 1 Baseline characteristics of the study subjects [n/(%)/(\(\:\stackrel{-}{x}\)±S)].
From: Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
Variables | N/(\(\:\stackrel{-}{\varvec{x}}\)±S) | No cases | Overweight | Obesity | χ2/t | P value |
|---|---|---|---|---|---|---|
Age(year) | 48.5 ± 8.3 | 47. 7 ± 8.0 | 49.6 ± 8.4 | 49.3 ± 8.6 | −15.47 | <0.05 |
Gender | 908.119 | <0.05 | ||||
Male | 10,742 | 4740(44.2) | 5439(50.6) | 563(5.2) | ||
Female | 8432 | 5563(66.0) | 2620(31.0) | 249(3.0) | ||
Marital status | 6.702 | <0.05 | ||||
Single | 1379 | 782(56.7) | 534(38.7) | 63(4.6) | ||
Non-single | 17,795 | 9521(53.5) | 7525(42.3) | 749(4.2) | ||
Family per capita monthly income (yuan) | 1.071 | >0.05 | ||||
<2000 | 10,220 | 5460(53.4) | 4326(42.3) | 433(4.2) | ||
2000 ~ 4999 | 8679 | 4696(54.1) | 3617(41.7) | 366(4.2) | ||
≥ 5000 | 275 | 147(53.3) | 116(42.0) | 13(4.7) | ||
Education level | 43.821 | <0.05 | ||||
Junior middle school or below | 8480 | 4340(51.2) | 3741(44.1) | 399(4.7) | ||
Senior high school | 5666 | 3188(56.3) | 2255(39.8) | 223(3.9) | ||
College or above | 5028 | 2775(55.2) | 2063(41.0) | 190(3.8) | ||
Occupation | 17.797 | <0.05 | ||||
Manager | 2483 | 1348(54.3) | 1045(42.1) | 89(3.6) | ||
Worker | 14,973 | 8101(54.1) | 6222(41.6) | 650(4.3) | ||
Servicer | 1068 | 538(50.4) | 489(45.8) | 41(3.8) | ||
Technician | 650 | 315(48.5) | 303(46.6) | 32(4.9) | ||
Smoking | 404.292 | <0.05 | ||||
Yes | 8365 | 3808(45.5) | 4123(49.3) | 434(5.2) | ||
No | 10,808 | 6495(60.1) | 3935(36.4) | 378(3.5) | ||
Drinking | 232.598 | <0.05 | ||||
Yes | 4371 | 1907(43.6) | 2240(51.2) | 224(5.1) | ||
No | 14,803 | 8396(56.7) | 5819(39.3) | 588(4.0) | ||
Tea drinking | 295.004 | <0.05 | ||||
Yes | 10,213 | 4899(48.0) | 4806(47.0) | 508(5.0) | ||
No | 8961 | 5404(60.3) | 3253(36.3) | 304(3.4) | ||
