Table 3. Components of the PREPARE risk assessment tool including all children who met the inclusion criteria (n=27 388).
| Factor | Adjusted log coefficient | PREPARE score* |
|---|---|---|
| Age category | ||
| 12–59 months | – | – |
| 6–11 months | 0.52 | +1 |
| 2–5 months | 0.85 | +2 |
| Sex | ||
| Male | – | – |
| Female | 0.31 | +1 |
| Weight-for-age z-score | ||
| >−2 | – | – |
| −2 to −3 | 1.00 | +2 |
| <−3 | 1.64 | +3 |
| Body temperature category | ||
| <35.5°C | 1.57 | +3 |
| 35.5°C to 37.9°C | – | – |
| >38°C | 0.04 | +0 |
| Respiratory rate (breaths/min) | ||
| ≤Age-specific cut-off† | – | – |
| 0–9 above age-specific cut-off† | 0.18 | +0 |
| 10–19 beats/min above age-specific cut-off† | 0.03 | +0 |
| ≥20 above age-specific cut-off† | 0.54 | +1 |
| Lower chest indrawing | ||
| No | – | – |
| Yes | 0.19 | +0 |
| Unconscious/decreased consciousness | ||
| No | – | – |
| Yes | 0.65 | +1 |
| Convulsions | ||
| No | – | – |
| Yes | 1.05 | +2 |
| Cyanosis | ||
| No | – | – |
| Yes | 0.85 | +2 |
| Oxygen saturation category | ||
| <90% | 1.10 | +2 |
| 90%–92% | 0.21 | +0 |
| 93%–100% | – | – |
*
To determine the weighted points assigned to each candidate variable from the multivariable model, we calculated the adjusted log coefficient of each candidate variable, rounded it to the nearest 0.5 and then doubled the rounded log coefficients to form an integer.
†
≥50 breaths/min for children 2–11 months old or ≥40 breaths/min for children 12–59 months old.
PREPARE, Pneumonia Research Partnership to Assess WHO Recommendations.