Table 2.
Clinical diagnosis of patients infected with HPIVs
| Diagnosis | n | HPIV1, n (%) | HPIV2, n (%) | HPIV3, n (%) | P* | HPIVs (1, 2, 3), n (%) |
|---|---|---|---|---|---|---|
| URI | 1257 | 47 (3.74) | 6 (0.48) | 104 (8.27) | <0.01 | 157 (12.49) |
| Bronchitis | 2479 | 53 (2.14) | 8 (0.32) | 215 (8.67) | <0.01 | 276 (11.13) |
| Bronchiolitis | 2536 | 12 (0.47) | 2 (0.08) | 136 (5.36) | <0.01 | 150 (5.91) |
| Pneumonia | 17,068 | 145 (0.85) | 12 (0.07) | 877 (5.14) | <0.01 | 1034 (6.06) |
| Asthma | 462 | 2 (0.43) | 0 (0) | 41 (8.87) | <0.01 | 43 (9.31) |
| Underlying diseases | 1506 | 2 (0.13) | 0 (0) | 15 (1.00) | <0.01 | 17 (1.13) |
| Fever | 465 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
| Total | 25,773 | 261 (1.01) | 28 (0.11) | 1388 (5.39) | <0.01 | 1675 (6.50) |
*Two-tailed Chi-square test, testing the distribution of each illness or diagnosis between the three HPIV types. HPIV: Human parainfluenza virus; URI: Upper respiratory infection.