Table 2. All-cause and cause-specific hospitalization rate ratios (RRs) for main effects and interaction effects of travel time to Kilifi District Hospital among children less than 5 years of age, Kilifi district, Kenya, 2004–2006.
| Models | RR (95% CI) | ||
|---|---|---|---|
| All admissionsa | Pneumoniab | Suspected meningitisc | |
| Pedestrian (per 60 minutes) | |||
| Travel time | 0.65 (0.58–0.74) | 0.63 (0.57–0.71) | 0.62 (0.53–0.73) |
| Male sex × travel time | 1.06 (1.02–1.10) | ||
| Maternal educationd 0.5 to < 0.6 × travel time | 1.21 (1.03–1.41) | 1.26 (1.10–1.45) | 1.33 (1.11–1.59) |
| Maternal education 0.6 to < 0.7 × travel time | 1.27 (1.10–1.48) | 1.28 (1.12–1.46) | 1.40 (1.19–1.64) |
| Maternal education ≥ 0.7 × travel time | 2.40 (1.31–4.42) | 1.68 (0.29–9.84) | 2.42 (0.83–7.04) |
| Vehicular (per 30 minutes) | |||
| Travel time | 0.71 (0.64–0.79) | 0.71 (0.64–0.78) | 0.75 (0.68–0.83) |
| Male sex × travel time | 1.07 (1.02–1.12) | 1.05 (0.97–1.14) | 1.11 (1.04–1.18) |
CI, confidence interval.
a Final models included main effects of sex, ethnic group, maternal education, migrant status and year and interaction effects of maternal education (pedestrian) or sex (vehicular).
b Final models included main effects of sex, ethnic group, maternal education, migrant status, year and season and interaction effects of maternal education (pedestrian) or sex (vehicular).
c Final models included main effects of sex, ethnic group, maternal education, migrant status, year and season and interaction effects of sex and maternal education (pedestrian) or sex alone (vehicular).
d Categories represent the proportion of women with any education in a child’s sublocation of residence.