Table 1.
Characteristic | Index (n=33) | Control (n=23) | |||
---|---|---|---|---|---|
Non-manual social class, n (%) | 17 | (51.5) | 13 | (56.5) | ϰ2=0.009,NS |
Manual social class, n (%) | 16 | (48.5) | 10 | (43.5) | |
Boys, n (%) | 15 | (45.5) | 13 | (60.9) | ϰ2=0.295, NS |
Girls, n (%) | 18 | (54.5) | 10 | (39.1) | |
Maternal age at follow-up, years: mean (range) | 37.3 | (31-51) | 38 | (31-48) | t=0.53,NS |
NS, not significant.