| Severe CAP | Non-severe CAP | OR(95% CI) | P |
---|---|---|---|---|
Age n(%) | ||||
 < 6 m | 2187 (66.09) | 7104 (42.12) | 0.67 [0.64–0.69] | < 0.0001 |
 6 m-1y | 377 (11.39) | 3142 (18.63) | ||
 1y-2y | 353 (10.67) | 2956 (17.53) | ||
 2y-6y | 392 (11.85) | 3663 (21.72) | ||
Gender (male) n(%) | 2192 (66.24) | 10,973 (65.06) | 1.05 [0.97–1.14] | 0.1925 |
Rural resident n(%) | 1638 (49.67) | 5454 (32.50) | 2.05 [1.90–2.21] | < 0.0001 |
Premature birth n(%) | 749 (23.55) | 1389 (8.34) | 3.38 [3.07–3.73] | < 0.0001 |
LBW n(%) | 744 (23.02) | 1254 (7.58) | 3.65 [3.30–4.03] | < 0.0001 |
Feeding | ||||
 Breastfeeding | 1307 (40.25) | 8811 (52.92) | 1.42 [1.36–1.49] | < 0.0001 |
 Mixture | 1080 (33.26) | 4957 (29.77) | ||
 Formula | 860 (26.49) | 2881 (17.30) | ||
Unhealthy parents | 383 (11.77) | 1207 (7.23) | 1.71 [1.51–1.93] | < 0.0001 |
CHD | 1222 (36.93) | 1507 (8.94) | 5.97 [5.46–6.52] | < 0.0001 |
History of pneumonia | 785 (23.72) | 2000 (11.86) | 2.31 [2.11–2.54] | < 0.0001 |
History of jaundice | 231 (6.98) | 420 (2.49) | 2.94 [2.49–3.47] | < 0.0001 |
Symptoms at admission n(%) | ||||
 Cough | 2574 (77.79) | 15,333 (90.92) | 0.35 [0.32–0.39] | < 0.0001 |
 Fever | 1123 (33.94) | 7644 (45.32) | 0.62 [0.57–0.67] | < 0.0001 |
 Wheezing | 577 (17.44) | 2385 (14.14) | 1.28 [1.16–1.42] | < 0.0001 |
 Dyspnea | 735 (22.21) | 1532 (9.08) | 59.58 [28.89–122.87] | < 0.0001 |
 Cyanosis | 278 (8.40) | 74 (0.44) | 20.81 [16.06–26.97] | < 0.0001 |
Abnormal chest X-ray | 535 (16.17) | 385 (2.28) | 8.26 [7.20–9.47] | < 0.0001 |
Abnormal results n(%) | ||||
 WBC | 1629 (88.68) | 7435 (80.54) | 1.89 [1.62–2.21] | < 0.0001 |
 Neutrophils | 880 (49.03) | 2291 (24.95) | 2.89 [2.61–3.21] | < 0.0001 |
 Lymphocytes | 1028 (57.27) | 2634 (28.68) | 3.33 [3.00–3.70] | < 0.0001 |
 Blood serum | 337 (31.44) | 397 (10.75) | 4.27 [3.78–4.81] | < 0.0001 |
 CRP | 641 (35.45) | 2390 (26.89) | 1.49 [1.34–1.66] | < 0.0001 |
 ESR | 202 (75.09%) | 1201 (82.20%) | 0.65 [0.48–0.89] | 0.0062 |
 ALB | 199 (10.87) | 270 (2.79) | 8.70 [7.53–10.05] | < 0.0001 |
 ALT | 110 (10.24) | 208 (5.60) | 2.97 [2.45–3.60] | < 0.0001 |
 AST | 140 (13.00) | 256 (6.89) | 3.61 [3.03–4.30] | < 0.0001 |
 TBIL | 384 (35.75) | 951 (25.63) | 2.69 [2.37–3.06] | < 0.0001 |
 SCR | 26 (2.43) | 87 (2.36) | 1.88 [1.34–2.63] | 0.8943 |
 Proteinuria | 511 (31.76) | 1036 (13.74) | 2.92 [2.58–3.31] | < 0.0001 |
 RSV | 212 (26.27) | 267 (18.94) | 1.53 [1.24–1.87] | < 0.0001 |