Table 5 Hazard ratios (HRs) from Cox regression models showing the effect of 5-year birth cohorts on survival time to first sex (for
pooled DHS data), stratified for area of residence, region, education and wealth
| Median AFS 1970–4 cohort | HRs by birth cohort | |||||
| 1970–4 | 1975–9 | 1980–4 | 1985–9 | 1990–1 | ||
| Men | ||||||
| All subjects (N) | 1002 | 1041 | 831 | 558 | 230 | |
| All subjects (HR) | 17.7 | 1 | 0.99 | 0.88 | 0.82* | 0.8 |
| Area (urban/rural) | ||||||
| Urban | 17.1 | 1 | 0.78* | 0.76* | 0.69* | 0.48 |
| Rural | 17.9 | 1 | 1.04 | 0.91 | 0.85 | 0.88 |
| Region | ||||||
| Central† | 17.5 | 1 | 0.95 | 0.99 | 0.96 | 0.64 |
| Eastern | 17.0 | 1 | 0.97 | 0.82 | 0.63* | 0.43* |
| Northern | 18.2 | 1 | 1.22 | 0.95 | 1.14 | 1.62* |
| Western | 18.0 | 1 | 0.90 | 0.72* | 0.67* | 0.8 |
| Education | ||||||
| None | 17.6 | 1 | 0.87 | 0.88 | 0.39 | N/A |
| Primary | 17.6 | 1 | 1.02 | 0.85 | 0.85 | 0.68 |
| Secondary and above | 18.1 | 1 | 0.97 | 0.97 | 0.84 | 1.71 |
| Wealth ranking | ||||||
| Poorest | 17.3 | 1 | 1.0 | 0.86 | 0.73 | 1.3 |
| Poor | 18.4 | 1 | 1.36* | 1.19 | 0.96 | 0.75 |
| Middle | 17.7 | 1 | 0.82 | 0.93 | 0.84 | 0.71 |
| Rich | 15.7 | 1 | 0.82 | 0.79 | 0.73 | 0.93 |
| Richest | 16.2 | 1 | 0.93 | 0.87 | 1.0 | 0.75 |
| Year of survey | ||||||
| 1995 | 17.5 | 1 | 0.92 | 0.51 | – | – |
| 2001 | 18.1 | 1 | 1.02 | 0.95 | 0.6 | – |
| 2006 | 17.6 | 1 | 0.97 | 0.9 | 0.83* | 0.85 |
| Women | ||||||
| All subjects (N) | 4893 | 4532 | 3454 | 2101 | 754 | |
| All subjects (HR) | 16.4 | 1 | 0.97 | 0.82*** | 0.67*** | 0.44*** |
| Area (urban/rural) | ||||||
| Urban | 16.6 | 1 | 0.94 | 0.79*** | 0.67*** | 0.61** |
| Rural | 16.3 | 1 | 0.99 | 0.84*** | 0.69*** | 0.42*** |
| Region | ||||||
| Central† | 16.1 | 1 | 0.97 | 0.81*** | 0.61*** | 0.44*** |
| Eastern | 15.8 | 1 | 0.96 | 0.83*** | 0.68*** | 0.47*** |
| Northern | 16.5 | 1 | 0.97 | 0.82** | 0.71*** | 0.34*** |
| Western | 17.0 | 1 | 0.96 | 0.82** | 0.71*** | 0.49** |
| Education | ||||||
| None | 15.9 | 1 | 0.99 | 0.98 | 0.77 | 0.41 |
| Primary | 16.2 | 1 | 1.04 | 0.81*** | 0.7*** | 0.42*** |
| Secondary and above | 17.9 | 1 | 0.92 | 0.94 | 0.87 | 0.91 |
| Wealth ranking | ||||||
| Poorest | 16.0 | 1 | 1.05 | 0.94 | 0.82 | 0.35 |
| Poor | 16.3 | 1 | 0.99 | 0.91 | 0.78** | 0.36*** |
| Middle | 15.1 | 1 | 1.09 | 0.83** | 0.6*** | 0.45** |
| Rich | 15.0 | 1 | 0.9 | 0.7*** | 0.57*** | 0.43*** |
| Richest | 17.1 | 1 | 1 | 0.88 | 0.76** | 0.75 |
| Year of survey | ||||||
| 1995 | 16.3 | 1 | 0.98 | 0.67 | ||
| 2001 | 16.6 | 1 | 1.04 | 0.89* | 0.56*** | – |
| 2006 | 16.2 | 1 | 0.93 | 0.8*** | 0.65*** | 0.42*** |
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Restricted to those born on or after 1 January 1970.
-
All birth cohorts compared with those born in 1970–4.
-
*p<0.05; **p<0.01; ***p<0.001.
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†Central region contains Masaka and Rakai districts.
