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Table 3 Comparison of the characteristics of patients with and without Pathological history, diagnosis at admission and admitted to Pediatric Intensive Care Unit from 1 to 24 months of age hospitalized for viral respiratory infections from 2013 to 2017 in the IMSS

From: Hospitalizations for viral respiratory infections in children under 2 years of age: epidemiology and in-hospital complications

  Pathological history Diagnosis at admission Admitted to Pediatric Intensive Care Unit
Without n = 59,236 With n = 7068 p Pneumonia n = 25,411 Bronchitis n = 3146 Bronchiolitis n = 37,747 p No n = 65,975 Yes n = 329 p
Frequency (%)
 Age (weeks)* 14.7 ± 15.3 (5–102) 14.6 ± 14.8 (5–102) 0.758 14.8 ± 16.0 (5–102) 14.3 ± 15.5 (5–102) 14.7 ± 14.7 (5–102) 0.786 14.7 ± 15.3 (5–102) 14.5 ± 14.5 (5–102) 0.832
 Sex Male 36,283 (61.25) 4166 (58.94) < 0.001 15,092 (59.39) 1875 (59.60) 23,482 (62.21) < 0.001 36,283 (61.25) 4166 (58.94) < 0.001
 Hospital stay (days)* 3.9 ± 3.8 (1–139) 6.0 ± 7.6 (1–205) < 0.001 5.09 ± 5.7 (1–205) 3.0 ± 3.4 (1–103) 3.5 ± 3.2 (1–119) < 0.001 4.0 ± 4.0 1–205) 21.6 ± 22.1 (1–139) < 0.001
 In-hospital complications 540 (0.91) 272 (3.85) < 0.001 466 (1.83) 14 (0.45) 332 (0.88) < 0.001 790 (1.20) 22 (6.69) < 0.001
 Invasive medical procedure 373 (0.63) 179 (2.53) < 0.001 416 (1.64) 20 (0.64) 116 (0.31) < 0.001 223 (0.34) 329 (100) < 0.001
 Pediatric Intensive Care Unit 221 (0.37) 108 (1.53) < 0.001 272 (1.07) 14 (0.45) 43 (0.11) < 0.001
 Mortality 227 (0.38) 144 (2.04) < 0.001 290 (1.14) 2 (0.06) 79 (0.21) < 0.001 341 (0.52) 30 (9.12) < 0.001
  1. Mean ± standard deviation (minimum-maximum)