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Table 1 Characteristics of pediatric patients on admission in Japanese intensive care units

From: Long-stay pediatric patients in Japanese intensive care units: their significant presence and a newly developed, simple predictive score

 All patients
n = 4107
SSPs
n = 3777
LSPs
n = 330
Sex- and age-adjusted OR of LSPs compared to SSPs (95% CI)Sex- and age-adjusted regression coefficient (95% CI)
Age (month), median (IQR)23.0 (7.0–71.0)24.0 (8.0–71.5)10.0 (3.0–53.3)  
Male [numbers (%)]2362(57.5%)2165(57.3%)197(59.7%)  
Emergency admission [numbers (%)]2277(55.4%)2042(54.1%)235(71.2%)2.38(1.83–3.08)*2.39(1.66–3.11)*
Reasons for admission [numbers (%)]
 Post-operative1814(44.2%)1730(45.8%)84(25.5%)1(Reference) (Reference)
 Post-CPR84(2.0%)59(1.6%)25(7.6%)9.29(5.51–15.65)7.53(5.00–10.07)
 Respiratory disorders833(20.3%)763(20.2%)70(21.2%)1.88(1.35–2.61)1.82(0.87–2.77)
 Circulatory disorders243(5.9%)193(5.1%)50(15.2%)5.23(3.57–7.67)4.12(2.57–5.67)
 Neurological disorders626(15.2%)578(15.3%)48(14.5%)1.80(1.25–2.61)1.86(0.80–2.91)
 Others507(12.3%)454(12.0%)53(16.1%)2.58(1.80–3.70)2.06(0.92–3.20)
Diagnosis at admission [numbers (%)]
 CHD (all)523(12.7%)469(12.4%)54(16.4%)1.22(0.89–1.67)**1.75(0.66–2.84)**
  Post-operation470(11.4%)431(11.4%)39(11.8%)0.92(0.65–1.32)**1.26(0.12–2.40)**
  Non-post operation53(1.3%)38(1.0%)15(4.5%)3.92(2.12–7.25)**5.02(1.86–8.20)**
 Myocarditis/cardiomyopathy52(1.3%)34(0.9%)18(5.5%)6.16(3.43–11.08)**6.85(3.67–10.03)**
 Encephalitis/encephalopathy135(3.3%)110(2.9%)25(7.6%)2.84(1.81–4.47)**7.98(6.00–9.97)**
 Liver dysfunction (all)212(5.2%)155(4.1%)57(17.3%)4.72(3.39–6.56)**6.28(4.68–7.88)**
  Post-transplantation97(2.4%)72(1.9%)25(7.6%)4.07(2.54–6.53)**7.45(5.11–9.79)**
  Post-status of the other operation29(0.7%)29(0.8%)0(0%)1.00 − 3.28(− 7.01 to 0.44)**
  Non post-operation77(1.9%)45(1.2%)32(9.7%)8.63(5.39–13.84)**8.98(6.36–11.59)**
 Upper airway obstruction198(4.8%)184(4.9%)14(4.2%)0.86(0.49–1.50)**− 1.32(−2.98 to 0.35)**
 Lower airway obstruction236(5.7%)230(6.1%)6(1.8%)0.28(0.12–0.63)**− 0.29(− 1.82 to 1.25)**
 Lung tissue disease241(5.9%)211(5.6%)30(9.1%)1.74(1.16–2.61)**1.89(0.38–3.41)**
 Disordered control of breathing48(1.2%)44(1.2%)4(1.2%)0.96(0.34–2.70)**0.01(− 3.31 to 3.33)**
 Trauma226(5.5%)218(5.8%)8(2.4%)0.45(0.22–0.92)**− 1.91(− 3.49 to − 0.35)**
  Head injury132(3.2%)126(3.3%)6(1.8%)0.54(0.23–1.23)**− 1.97(− 3.99 to 0.05)**
 Multiple injury25(0.6%)23(0.6%)2(0.6%)1.20(0.28–5.14)**− 0.18(− 4.78 to 4.42)**
ISS, median (IQR)10 (4–17)10 (4–17)17 (10–40)1.04(1.01–1.07)0.19(0.16–0.22)
   Per 1.0 increasePer 1.0 increase
PIM2, median (IQR)1.0 (0.3–3.0)0.9 (0.2–2.2)5.3 (2.1–19.5)1.04(1.04–1.05)0.17(0.13–0.21)
   Per 1.0 increasePer 1.0 increase
PCPC before admission
 [Numbers (%)]12733(66.5%)2515(66.6%)218(66.1%)1(Reference) (Reference)
2403(9.8%)367(9.7%)36(10.9%)1.17(0.81–1.70)− 0.33(− 1.55 to 0.89)
3423(10.3%)392(10.4%)31(9.4%)0.91(0.62–1.35)− 0.4(− 1.59 to 0.80)
4537(13.1%)494(13.1%)43(13.0%)1.12(0.79–1.59)− 0.3(− 1.38 to 0.79)
511(0.3%)9(0.2%)2(0.6%)2.95(0.63–13.84)13.43(6.54–20.33)
Chromosomal abnormality
 [Numbers (%)]None       (Reference) (Reference)
21 trisomy157(3.8%)147(3.9%)10(3.0%)0.72(0.37–1.39)− 0.67(− 2.55 to 1.20)
Others106(2.6%)92(2.4%)14(4.2%)1.77(0.99–3.15)1.00(− 1.27 to 3.26)
  1. CHD congenital heart disease, CI confidence interval, CPR cardio-pulmonary resuscitation, IQR interquartile range, ISS Injury Severity Score, LSPs long-stay patients, NE not examined, OR odd ratio, PCPC Pediatric Cerebral Performance Category, PIM2 Pediatric Index of Mortality 2, SSPs short-stay patients
  2. *The reference is the planned admission
  3. **The reference is the other diagnoses