Median age at first sex, by sex, age group, country, and survey
| Survey | Age group (years) | Ghana | Kenya | Tanzania | Uganda | Zambia | Zimbabwe |
|---|---|---|---|---|---|---|---|
| Significance of difference with previous age group from Cox regression based test for equality of survival curves; bold type indicates differences significant at the 95% level. | |||||||
| Men | |||||||
| First | 15–19 | 16.2 | |||||
| 20–24 | 16.1 | ||||||
| Second | 15–19 | 18.5 | NA | 17.9 | 17.7 | 15.7 | 18.5 |
| 20–24 | 18.3 | 16.2 | 17.8 | 17.3 | 16.0 | 18.5 | |
| Third | 15–19 | >20 | 16.5 | 16.6 | 18.3 | 16.5 | |
| 20–24 | 19.3 | 16.0 | 17.4 | 18.2 | 17.0 | ||
| Women | |||||||
| First | 15–19 | 17.0 | 17.5 | 17.2 | 16.0 | 16.4 | 18.9 |
| 20–24 | 16.6 | 16.5 | 17.0 | 15.8 | 16.5 | 18.1 | |
| Second | 15–19 | 16.8 | 17.7 | 17.3 | 16.3 | 16.5 | 18.8 |
| 20–24 | 16.8 | 17.0 | 17.0 | 16.1 | 16.4 | 18.4 | |
| Third | 15–19 | 18.1 | 17.6 | 17.0 | 17.1 | 16.7 | 18.6 |
| 20–24 | 17.3 | 17.1 | 16.7 | 16.3 | 16.7 | 18.4 | |