TABLE 3

Hospitalization Characteristics of Children Admitted to 47 Pediatrics Hospitals From January 1, 2009 Through December 31, 2014, With Aspiration and CAP

Clinical CharacteristicAspiration Pneumonia, n = 12 097, n (%)CAP, n = 121 489, n (%)Pa
Hospital length of stay<.001
 1–2 d2710 (22.4)64 231 (52.9)
 3–7 d5106 (42.2)40 102 (33.0)
 >7 d4218 (35.4)17 156 (14.1)
ICU care received4022 (33.3)14 249 (11.7)<.001
Classification of pneumonia<.001
 Uncomplicated11 586 (96.0)110 616 (91.2)
 Complicated pneumonia diagnosis alone390 (3.2)8017 (6.6)
 Complicated pneumonia with pleural drainage procedure90 (0.8)2610 (2.2)
% Receiving laboratory testing
 Complete blood count9472 (78.3)80 014 (65.9).220
 Blood culture8663 (71.6)72 630 (60.0).896
 Serum electrolytes7607 (62.9)55 819 (46.0).221
 Viral studies4275 (35.3)35 966 (29.6).427
 C-reactive protein3452 (28.5)29 449 (24.2).141
 Arterial blood gas6477 (53.5)28 871 (23.8)<.001
 Erythrocyte sedimentation rate779 (6.4)9842 (8.1).011
 Respiratory culture6080 (50.3)38 800 (31.9).121
Readmission within 30 d4330 (35.8)20 030 (16.5)<.001
Hospitalization cost, $ (median, interquartile range)14963 (7240–31848)6115 (3431–12755)<.001
APR-DRG Severity Classificationb<.001
 Minor353 (3.1)33 807 (29.4)
 Moderate2622 (22.8)47 816 (41.6)
 Major5849 (50.8)24 442 (21.2)
 Extreme2680 (23.3)8974 (7.8)
  • a Adjusted for patient age, sex, race, source of insurance payment, and the presence of complex chronic conditions.

  • b Illness severity defined as part of the All Patient Refined Diagnosis Related Groups (APR-DRG) classification18; statistical comparison of pneumonia groups is of patients designated as extreme versus all others.