Table 1 General characteristics of participants
From: Bidirectional association between asthma and otitis media in children
Characteristics | Study I | Study II | ||||
|---|---|---|---|---|---|---|
Asthma (n, %) | Control I (n, %) | P-value | Otitis media (n, %) | Control II (n, %) | P-value | |
Atopic dermatitis | 3220 (22.0) | 1877 (12.8) | < 0.001* | 4753 (17.6) | 3306 (12.2) | < 0.001* |
Chronic sinusitis | 758 (5.2) | 452 (3.1) | < 0.001* | 1373 (5.1) | 646 (2.4) | < 0.001* |
Otitis media ≥ 1 time | 6138 (41.9) | 4418 (30.1) | < 0.001* | 27,043 (100.0) | 0 (0.0) | < 0.001* |
Otitis media ≥ 2times | 4009 (27.3) | 2652 (18.1) | < 0.001* | 18,723 (69.2) | 0 (0.0) | < 0.001* |
Otitis media ≥ 3 times | 2765 (18.9) | 1751 (11.9) | < 0.001* | 13,317 (49.2) | 0 (0.0) | < 0.001* |
Otitis media ≥ 4 times | 2062 (14.1) | 1244 (8.5) | < 0.001* | 10,063 (37.2) | 0 (0.0) | < 0.001* |
Otitis media ≥ 5 times | 1565 (10.7) | 929 (6.3) | < 0.001* | 7805 (28.9) | 0 (0.0) | < 0.001* |
Asthma | 0 (0.0) | 14,665 (100.0) | < 0.001* | 4468 (16.5) | 3086 (11.4) | < 0.001* |