Table 1. Demographic characteristics of residents in Shenzhen and Xiuning in China in 2007.
| Shenzhen (%) | Xiuning (%) | Total (%) | |
| (n = 2,058) | (n = 2,892) | (N = 4,950) | |
| Male ‡ | 1,003 (49) | 1,396 (48) | 2,399 (48) |
| Median age* (years, range) | 30 (5–83) | 44 (5–94) | 37 (5–94) |
| Age group‡ | |||
| 5–18 | 304 (15) | 430 (15) | 734 (15) |
| 19–39 | 1,236 (60) | 754 (26) | 1,990 (40) |
| 40–59 | 425 (21) | 1150 (40) | 1575 (32) |
| ≥60 | 93 (4) | 558 (19) | 651 (13) |
| Highest level of education‡ | |||
| None or kindergarten | 122 (6) | 626 (22) | 748 (15) |
| Primary school | 417 (20) | 1,228 (42) | 1,645 (33) |
| Junior high school | 759 (37) | 839 (29) | 1,598 (32) |
| High school | 466 (23) | 182 (6) | 648 (13) |
| College or higher | 294 (14) | 17 (1) | 311 (7) |
| Occupation‡ | |||
| Employed | 1,268 (62) | 2,282 (79) | 3,550 (72) |
| Unemployed | 144 (7) | 108 (4) | 252 (5) |
| Students | 296 (14) | 441 (15) | 737 (15) |
| Homemakers | 244 (12) | 39 (1) | 283 (6) |
| Retired | 106 (5) | 22 (1) | 128 (2) |
| Household size | n = 994 | n = 1,053 | N = 2,047 |
| Median (range)* | 2 (1–11) | 3 (1–9) | 2 (1–11) |
| 1 | 353 (36) | 155 (15) | 508 (25) |
| 2 | 379 (38) | 340 (32) | 719 (35) |
| 3 | 158 (16) | 290 (28) | 448 (22) |
| 4 | 71 (7) | 180 (17) | 251 (12) |
| ≥5 | 33 (3) | 88 (8) | 121 (6) |
| Household with children <5 years‡ | 168 (17) | 136 (13) | 304 (15) |
| Household with children <15 years‡ | 296 (30) | 368 (35) | 664 (32) |
*Median age and household size between urban and rural groups were compared by the Wilcoxon rank sum test, Z = 12.137, P<0.001 and Z = −13.664, P<0.001.
‡
Frequencies for male, age group, highest level of education, occupation status, household with children <5 years and household with children <15 years between urban and rural group were compared by the Chi-squared test, with p = 0.747, p<0.001, p<0.001, p<0.001, p = 0.016 and p = 0.013, respectively.