Table 3.
Age-Specific Means From Models for Time Spent With Asymptomatic Infection, Molecular Force of Infection, and Duration of Infection, Mfera Cohort Study, Malawi, 2012–2017
| Predictor and Age Group | Mean (SE)a | P Value | Model Used | Covariates Included |
|---|---|---|---|---|
| Time spent with asymptomatic infection, days | Linear mixed-effect regression | None | ||
| <5 years | 67.5 (12.5) | Referent | ||
| SAC (5–15 years) | 81.7 (14.6) | 0.35 | ||
| Adults (>15 years) | 71.8 (17.8) | 0.81 | ||
| Molecular force of infection | Linear multivariable regression | Sex | ||
| <5 years | 4.1 (1.5) | Referent | ||
| SAC (5–15 years) | 4.3 (1.6) | 0.91 | ||
| Adults (>15 years) | 0.9 (1.7) | 0.006 | ||
| Duration of infection, days | Linear mixed-effect regression | Season of first detection | ||
| <5 years | 85.2 (1.1) | Referent | ||
| SAC (5–15 years) | 124.6 (1.2) | 0.001 | ||
| Adults (>15 years) | 126.8 (1.2) | 0.001 |
Abbreviations: SAC, school-aged children; SE, standard error.
a Outcome variable log-transformed for all models and back transformed to give group-specific mean.