Sensitivity, specificity, and percentage of correct classification of tachypnoea for children with pneumonia according to age, nutritional status, and time of onset of disease
| Clinical characteristic | n | % Sensitivity (95% CI) | % Specificity (95% CI) | % Correct classification | p Value |
|---|---|---|---|---|---|
| Age group (months) | |||||
| < 6 | 31 | 83 (70 to 96) | 63 (46 to 80) | 70.8 | |
| 6 to 11 | 19 | 67 (47 to 87) | 69 (48 to 90) | 68.4 | > 0.05 |
| 12 to 59 | 60 | 71 (59 to 82) | 67 (55 to 79) | 68.3 | |
| Duration of disease (days) | |||||
| < 3 | 37 | 55 (40 to 72) | 64 (49 to 80) | 62.1 | |
| 3 to 5 | 43 | 64 (49 to 78) | 66 (51 to 80) | 65.1 | < 0.01 |
| ⩾ 6 | 30 | 93 (84 to 102) | 73 (57 to 89) | 83.3 | |
| Nutritional status | |||||
| No weight for age deficit | 77 | 69 (50 to 88) | 74 (62 to 86) | 72.7 | 0.44 |
| With weight for age deficit | 33 | 83 (62 to 100) | 48 (27 to 69) | 60.6 |
% Correct classification was assessed by discriminant analysis.
CI, confidence interval.