Table 3. Age- and sex-stratified adjusted hazard ratios of time to symptomatic malaria.
| Comparison | Age aHR (95% CI) | Sex aHR (95% CI) | ||||
|---|---|---|---|---|---|---|
| <5 years | 5 to 15 years | >15 years | Male | Female | ||
| 1-Month main model | 3.77 (2.02,7.04) | 2.45 (1.79,3.35) | 2.55 (1.57,4.15) | 1.76 (1.24,2.50) | 3.71 (2.62,5.24) | |
| 1-Month pre-symptomatic | 2.85 (1.19,6.79) | 1.61 (1.05,2.46) | 1.90 (0.93,3.86) | 1.24 (0.75,2.05) | 2.34 (1.47,3.71) | |
| 3-Month main model | 2.47 (1.59,3.84) | 1.49 (1.21,1.85) | 1.69 (1.23,2.32) | 1.29 (1.01,1.64) | 2.03 (1.62,2.55) | |
| 3-Month pre-symptomatic | 2.00 (1.20,3.34) | 1.16 (0.90,1.48) | 1.35 (0.94,1.93) | 1.05 (0.79,1.39) | 1.52 (1.18,1.97) | |
| 6-Month main model | 1.94 (1.34,2.80) | 1.32 (1.11,1.57) | 1.31 (1.01,1.70) | 1.13 (0.93,1.39) | 1.62 (1.35,1.94) | |
| 6-Month pre-symptomatic | 1.63 (1.08,2.46) | 1.11 (0.92,1.34) | 1.10 (0.83,1.46) | 0.98 (0.78,1.22) | 1.33 (1.09,1.62) | |
| 12-Month main model | Not calculated* | Not calculated* | Not calculated* | 1.10 (0.86,1.19) | 1.21 (1.05,1.41) | |
| 12-Month pre-symptomatic | 1.24 (0.88,1.74) | 1.00 (0.86,1.17) | 0.85 (0.68,1.07) | 0.91 (0.77,1.09) | 1.04 (0.88,1.22) | |
| 29-Month main model | 1.38 (1.05,1.81) | 1.16 (1.02,1.32) | 0.96 (0.81,1.13) | 1.08 (0.94,1.24) | 1.14 (1.01,1.30) | |
| 29-Month pre-symptomatic | 1.23 (0.92,1.64) | 1.06 (0.93,1.21) | 0.88 (0.74,1.05) | Not calculated* | Not calculated* | |
Abbreviations: CI, confidence interval; aHR, adjusted hazard ratio.
*Not calculated due to data sparsity.
Statistically significant effect measure modification by the log-likelihood ratio test is bolded.