Duration of symptoms after the index consultation and unresolved symptoms at day 28 in patients with and without pertussis
| Median duration of symptoms after the index consultation, days (IQR) | Unresolved symptoms at day 28, N (%) | Missing | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Pertussis present | Pertussis absent | Hazard ratio (95% CI) | P-value | Pertussis present | Pertussis absent | Odds ratio (95% CI) | P-value | N (%) | |
| Cough | 17 (10–28) | 12 (7–21) | 0.68 (0.51 to 0.91) | 0.008 | 29/79 (37) | 463/2431 (19) | 2.47 (1.54 to 3.94) | <0.001 | 6 (0.2) |
| Phlegm | 12 (5–26) | 9 (5–17) | 0.70 (0.53 to 0.92) | 0.010 | 26/79 (33) | 358/2424 (15) | 2.83 (1.75 to 4.59) | <0.001 | 13 (0.5) |
| Shortness of breath | 1 (0–11) | 1 (0–5) | 0.75 (0.57 to 0.98) | 0.037 | 17/79 (22) | 209/2417 (9) | 2.90 (1.66 to 5.05) | <0.001 | 20 (0.8) |
| Wheeze | 2 (0–10) | 2 (0–7) | 0.83 (0.65 to 1.06) | 0.143 | 12/79 (15) | 135/2419 (6) | 3.03 (1.60 to 5.74) | 0.001 | 18 (0.7) |
| Chest pain | 1 (0–2) | 1 (0–1) | 0.99 (0.78 to 1.27) | 0.962 | 5/79 (6) | 98/2411 (4) | 1.60 (0.63 to 4.03) | 0.324 | 26 (1.0) |
| Muscle aches | 1 (0–8) | 3 (0–7) | 0.91 (0.72 to 1.15) | 0.417 | 6/79 (8) | 126/2410 (5) | 1.49 (0.64 to 3.49) | 0.359 | 27 (1.1) |
| Headache | 2 (0–8) | 3 (0–7) | 0.99 (0.78 to 1.25) | 0.918 | 6/79 (8) | 115/2416 (5) | 1.65 (0.70 to 3.86) | 0.253 | 21 (0.8) |
| Disturbed sleep | 7 (2–14) | 5 (1–9) | 0.73 (0.57 to 0.94) | 0.013 | 10/79 (13) | 164/2416 (7) | 1.99 (1.01 to 3.94) | 0.048 | 21 (0.8) |
| Interference with normal activities or work | 6 (1–12) | 5 (1–9) | 0.76 (0.60 to 0.98) | 0.033 | 12/79 (15) | 132/2413 (6) | 3.10 (1.63 to 5.86) | 0.001 | 24 (1.0) |
IQR = interquartile range. P < 0.05 significant.