From: Pertussis detection in children with cough of any duration
Acute cough N = 119 | Sub-acute cough N = 80 | Chronic cough N = 113 | P value | |
---|---|---|---|---|
Anti –PT IgG (N = 298), ≥ 62.5 IU/ml, n(%) | N = 117 14(12.0) | N = 73 28(38.4) | N = 108 32(30.0) | <0.0001 |
Anti –PRN IgG, IU/ml (N = 217) | N = 95 | N = 57 | N = 65 | |
median, IQR | 11.1, 0–33.3 | 12.4, 0–48.0 | 22.9, 8.7–98.0 | 0.0082 |
NPS culture and PCR for pertussis (N = 309) | N = 119 | N = 79 | N = 111 | |
Culture positive, n(%) | 11(9.2) | 20(25.3) | 5(4.5) | <0.0001 |
PCR positive, n(%) | 25(21.0) | 30(38.0) | 14(12.6) | 0.0002 |
N = 119 | N = 80 | N = 113 | ||
Laboratory confirmed pertussis, n(%) | 34(28.6) | 37(46.3) | 26(23.0) | 0.0021 |