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Table 1 Subject characteristics by Hospital

From: Length of paediatric inpatient stay, socio-economic status and hospital configuration: a retrospective cohort study

Characteristics Hospital A (n = 1940)a Hospital P (n = 949)a Overall (n = 2889)a p valueb
LOS LOS (days) Mean, SD 1.8 ± 2.4 1.7 ± 2.8 1.8 ± 2.6 0.654
LOS ≥ 1.8 days   39.7 36.5 38.7 0.089
LOS < 24 h   20 23.5 21.1 0.288
Demographic Gender Male 56.3 55.1 55.9 0.532
Age (years) Mean, SD 3.9 ± 4.4 3.8 ± 4.2 3.7 ± 4.2 0.937
Age group (years) 1 and Under 40 40.9 40.3 0.509
2 to 5 34.1 34.7 34.3
6 to 10 12.9 13.4 13.1
11 to 16 13 11.1 12.4
Ethnic Group White 28.9 39.2 32.3 <0.001
Mixed White 23.2 24 23.5
Asian 33.6 23.9 30.4
Black 8.4 5.2 7.3
Other or not specified 5.9 5.9 6.5
Distance (Km)a Mean 6.3 ± 14.7 4.8 ± 14.7 6.3 ± 23.2  
Distance (quartiles) a 1st (live closest) 20 35 24.9 <0.001
2nd 25 25.2 25.1
3rd 25.7 23.5 25
4th (live furthest) 29.2 16.3 25
IDACI Mean 0.3 ± 0.14 0.43 ± 0.17 0.34 ± 0.17  
IDACI (quartiles)c 1st (least deprived) 30.8 12.9 24.9 <0.001
2nd 28.8 17.3 25
3rd 25.9 23 24.9
4th (most deprived) 14.6 46.8 25.1
Clinical Specialty Medical 82.8 93.5 86.3 <0.001
Surgical 17.2 6.5 13.7
Diagnosis allergy 0.4 0.6 0.5 <0.001
cardiac 1 0.7 0.9
endocrine 1.1 2.1 1.5
gastro 13.6 10.6 12.6
haemoncology 5.4 4.7 5.2
infection 21.6 21.6 21.6
MSK 1.5 1.7 1.6
neurology 6.1 9.3 7.1
other 2.4 1.9 2.3
psychosocial 1.3 1.8 1.5
respiratory 20 24.7 21.5
surgical GIT 1.8 1 1.5
trauma 12.7 12.1 13.2
urogenital 4.9 3.6 1.8
Maxfax/Dental/ ENT 3.9 1.4 3.1
congenital 0.4 0 0.3
Dermatology 2 2.2 2.1
Number of admissions (in the year) 1 64.5 71 66.6 0.005
2 18.8 15.9 17.8
3 6.4 5.5 6.1
4 or more 10.4 7.6 9.5
Readmission within 28 days 2.5 3.4 2.8 0.196
Process Time of admission 9.00 to 16.59 33.8 36.4 34.6 0.105
17.00 to 21.59 27.5 28.9 28
22.00 to 08.59 38.7 34.7 37.4
Day of admission weekday 85.7 88 86.5 0.095
weekend 14.3 12 13.5
Season of admission spring 26.8 28.1 27.2 0.58
summer 23.8 23.8 23.8
autumn 25 25.8 25.2
winter 24.5 22.2 23.8
Source of admission elective 9.6 3.6 7.7 <0.001
emergency via A&E 74.6 88.6 79.2
emergency via other 13 6.9 11
other 27 1 2.1
  1. A&E Accident and Emergency department, ENT Ears nose and throat, GIT Gastrointestinal Tract, IDACI Income deprivation affecting children index, LOS Length of stay, MaxFax Maxillofacial, MSK Musculoskeletal, SD Standard deviation
  2. aData were complete for all variables except for distance lived from hospital (n = 74) due to missing postcode or mismatched hospital ward to hospital; % of children in each category unless indicated
  3. bUnivariate analysis of continuous variables using t-test (parametric) or Mann–Whitney (non-parametric) and of categorical variables using chi2
  4. cQuartile of IDACI was calculated in absolute terms for the total dataset not by hospital site