Table 2.
Demographics of the Study Participants and Their Families
| Ready-Made Spectacles (n = 216) | Custom Spectacles (n = 212) | P | |
|---|---|---|---|
| Age, yrs (mean ± SD) | 14.1±1.0 | 14.1±0.8 | 0.57 |
| Gender, n (% male) | 93 (43) | 114 (54) | 0.03 |
| Household monthly income in RMB, n (%) | |||
| <1000 | 55 (26) | 61 (29) | 0.40 |
| 1001–2000 | 94 (44) | 95 (45) | |
| 2001–5000 | 59 (28) | 49 (23) | |
| 5001–10 000 | 3 (1) | 2 (1) | |
| >10 000 | 3 (1) | 4 (2) | |
| People in household | |||
| Adults | 2.4±0.9 | 2.4±0.8 | 0.93 |
| Children | 2.0±0.9 | 2.0±0.9 | 0.87 |
| Married parents, n (%) | 208 (97) | 207 (98) | 0.45 |
| Mother education, n (%) | |||
| Illiterate | 0 (0) | 3 (1) | 0.94 |
| Primary school | 39 (18) | 41 (19) | |
| Junior high school | 121 (57) | 106 (50) | |
| Senior high school | 42 (20) | 50 (24) | |
| Technical college | 3 (1) | 2 (1) | |
| University | 9 (4) | 9 (4) | |
| Father education, n (%) | |||
| Illiterate | 1 (0) | 2 (1) | 0.30 |
| Primary school | 21 (10) | 35 (17) | |
| Junior high school | 108 (50) | 81 (39) | |
| Senior high school | 64 (30) | 80 (38) | |
| Technical college | 6 (3) | 4 (2) | |
| University | 14 (7) | 8 (4) | |
| Mother occupation, n (%) | |||
| Unemployed | 60 (28) | 66 (31) | 0.76 |
| Manual worker | 92 (43) | 80 (38) | |
| Nonmanual worker | 60 (28) | 63 (30) | |
| N/A | 1 (0) | 1 (0) | |
| Father occupation, n (%) | |||
| Unemployed | 29 (14) | 31 (15) | 0.73 |
| Manual worker | 119 (56) | 111 (53) | |
| Nonmanual worker | 65 (30) | 67 (32) | |
| N/A | 1 (0) | 0 (0) | |
N/A = not applicable; RMB = renminbi; SD = standard deviation.