Table 3. The interaction between under-five mortality transition and maternal educational attainment or household wealth in Ifakara and Rufiji, United Republic of Tanzania, 2000–2011.
| Variable | HR (95% CI)a |
||
|---|---|---|---|
| Ifakarab | Rufijic | Alld | |
| Mother’s education | |||
| No education | 1.50 (0.84–2.67) | 1.63 (1.01–2.63) | 1.50 (1.04–2.16) |
| Primary incomplete | 1.29 (0.97–1.72) | 1.26 (0.98–1.62) | 1.32 (1.09–1.59) |
| Primary complete | 1.12 (0.93–1.36) | 1.09 (0.93–1.28) | 1.13 (1.00–1.27) |
| Secondary or more | Reference | Reference | Reference |
| Household’s wealth, quintilee | |||
| First | 1.33 (1.06–1.67) | 1.16 (0.89–1.50) | 1.27 (1.07–1.50) |
| Second | 1.15 (1.02–1.29) | 0.96 (0.84–1.10) | 1.06 (0.97–1.16) |
| Third | 1.03 (0.95–1.11) | 0.92 (0.84–1.00) | 0.98 (0.93–1.04) |
| Fourth | 1.01 (0.95–1.07) | 0.98 (0.91–1.04) | 0.99 (0.95–1.04) |
| Fifth | Reference | Reference | Reference |
| Time periodf | 0.95 (0.83–1.09) | 0.92 (0.82–1.04) | 0.94 (0.86–1.03) |
| Wealth of household*Period | |||
| First*Period | 0.98 (0.92–1.04) | 1.04 (0.97–1.12) | 1.00 (0.96–1.05) |
| Second* Period | 0.97 (0.94–1.00) | 1.04 (1.00–1.08) | 1.00 (0.98–1.02) |
| Third* Period | 0.99 (0.97–1.01) | 1.04 (1.01–1.06) | 1.01 (1.00–1.03) |
| Fourth* Period | 1.00 (0.98–1.01) | 1.02 (1.00–1.04) | 1.01 (1.00–1.02) |
| Fifth* Period | Reference | Reference | Reference |
| Mother’s education*Period | |||
| No education* Period | 0.97 (0.84–1.11) | 0.93 (0.83–1.06) | 0.96 (0.88–1.05) |
| Primary incomplete* Period | 0.99 (0.92–1.07) | 0.97 (0.91–1.03) | 0.98 (0.93–1.03) |
| Primary complete* Period | 0.99 (0.94–1.03) | 0.99 (0.95–1.03) | 0.99 (0.96–1.02) |
| Secondary or more* Period | Reference | Reference | Reference |
CI: confidence interval; HR: hazard ratio.
a HRs were calculated using multivariate analysis with interaction between time and mother’s education attainment or household’s socioeconomic status, Cox model.
b In the analysis 73 047 children and 3744 events were included.
c In the analysis 58 366 children and 3019 events were included.
d In the analysis 131 413 children and 6763 events were included.
e First quintile represents the poorest households and fifth quintile represents the richest.
f We used two-year period averages to stabilize rates differentials due to fewer numbers of child deaths in some years.
Note: We used Cox proportional hazard analysis with interaction between time and mother’s education attainment or household’s socioeconomic status.