From: Age at menarche and the menstrual pattern of secondary school adolescents in northwest Ethiopia
Variable | Probit analysis | Recall age | ||||
---|---|---|---|---|---|---|
n | median (95% CI) | n | mean ± sd | t | P- value | |
District | ||||||
Dabat | 286 | 15.3(14.5-15.8) | 294 | 15.9 ± 1 | 2.2 | >0.06 |
Koladiba | 279 | 14.4(12.2-15.2) | 284 | 15.7 ± 1 | ||
Residence | ||||||
Rural | 343 | 15.1(10.3-16) | 349 | 15.9 ± 1 | 3.26 | <0.001 |
Urban | 222 | 14.4(11.9-15.2) | 229 | 15.6 ± 1 | ||
Total | 565 | 14.8(13.9-15.3)* | 578 | 15.8 ± 1 |