Table 1. Characteristics of new and known atopic cases and controls in Chinese adults.
| Control | New cases | P1 | Known cases | P1 | |
|---|---|---|---|---|---|
| Male | |||||
| Number | 613 | 433 | 390 | ||
| Age, years | 35.84 (16.91) | 34.34 (17.31) | 0.1611 | 31.96 (14.91) | 0.0002 |
| Height, cm | 167.40 (16.69) | 168.10 (17.21) | 0.4853 | 169.30 (15.57) | 0.0616 |
| Weight, kg | 66.33 (17.93) | 66.99 (19.72) | 0.5766 | 69.18 (18.67) | 0.0160 |
| BMI, kg/m2 | 23.18 (4.38) | 23.11 (4.56) | 0.8166 | 23.66 (4.54) | 0.0953 |
| Rural, n (%) | 203 (33.12) | 154 (35.57) | 0.4104 | 118 (30.26) | 0.3440 |
| Married, n (%) | 377 (61.50) | 255 (58.89) | 0.3953 | 210 (53.85) | 0.0165 |
| Cigarette smoking, n (%) | 223 (36.38) | 175 (40.42) | 0.1853 | 126 (32.31) | 0.1870 |
| Alcohol drinking, n (%) | 216 (35.24) | 149 (34.41) | 0.7826 | 104 (26.67) | 0.0045 |
| Physical exercise, n (%) | 240 (39.15) | 172 (39.72) | 0.8523 | 184 (47.18) | 0.0121 |
| Education | |||||
| Junior high school or lower | 287 (46.82) | 208 (48.04) | 0.9250 | 151 (38.72) | 0.0412 |
| Senior high school | 141 (23.00) | 98 (22.63) | 102 (26.15) | ||
| University or higher | 185 (30.18) | 127 (29.33) | 137 (35.13) | ||
| Family history, n (%) | 72 (11.75) | 70 (16.17) | 0.0398 | 176 (45.13) | <0.0001 |
| Obese, n (%) | 45 (7.34) | 38 (8.78) | 0.3977 | 58 (14.87) | 0.0001 |
| Female | |||||
| Number | 1,604 | 865 | 724 | ||
| Age, years | 38.18 (13.64) | 36.26 (14.02) | 0.0010 | 36.80 (14.52) | 0.0305 |
| Height, cm | 160.80 (7.77) | 160.20 (10.23) | 0.1360 | 160.40 (9.67) | 0.2405 |
| Weight, kg | 57.53 (10.34) | 57.04 (11.67) | 0.3051 | 58.18 (11.67) | 0.1957 |
| BMI, kg/m2 | 22.16 (3.57) | 22.04 (3.62) | 0.4136 | 22.53 (3.91) | 0.0319 |
| Rural, n (%) | 565 (35.22) | 257 (29.71) | 0.0055 | 200 (27.62) | 0.0003 |
| Married, n (%) | 1,254 (78.18) | 652 (75.38) | 0.1132 | 522 (72.10) | 0.0014 |
| Cigarette smoking, n (%) | 138 (8.60) | 53 (6.13) | 0.0280 | 50 (6.91) | 0.1641 |
| Alcohol drinking, n (%) | 93 (5.80) | 58 (6.71) | 0.3695 | 15 (2.07) | <0.0001 |
| Physical exercise, n (%) | 446 (27.81) | 258 (29.83) | 0.2886 | 206 (28.45) | 0.7474 |
| Education | |||||
| Junior high school or lower | 679 (42.33) | 348 (40.23) | 0.1698 | 270 (37.29) | 0.0022 |
| Senior high school | 448 (27.93) | 228 (26.36) | 186 (25.69) | ||
| University or higher | 477 (29.74) | 289 (33.41) | 268 (37.02) | ||
| Family history, n (%) | 223 (13.90) | 135 (15.61) | 0.2512 | 312 (43.09) | <0.0001 |
| Obese, n (%) | 62 (3.87) | 40 (4.62) | 0.3660 | 69 (9.53) | <0.0001 |
1P values comparing cases with controls.