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Table 1 Admissions data at City Hospital. Comparisons are by admission rather than patient

From: The effect of a hospital liaison psychiatry service on inpatient lengths of stay: interrupted time series analysis using routinely collected NHS hospital episode statistics

CharacteristicsCategoriesBeforeAfterp-value
Number of admissions/stays 15,91616,862 
Number of patients 12,89213,618 
LOS (median IQR) 2 [1, 6]2 [1,6]0.024
Log LOS (mean (sd)) 1.06 (1.12)1.04 (1.10)0.018
Age (mean (sd)) 55.92 (21.24)55.75 (21.19)0.455
Age16–40 (n (%))4246 (26.7%)4465 (26.5%)0.345
40–50 (n (%))2131 (13.4%)2316 (13.7%) 
50–60 (n (%))2004 (12.6%)2141 (12.7%) 
60–70 (n (%))2240 (14.1%)2481 (14.7%) 
70–80 (n (%))2859 (18.0%)2915 (17.3%) 
80–109 (n (%))2436 (15.3%)2544 (15.1%) 
Admission typeElective (n (%))4278 (26.9%)4251 (25.2%)0.001
Other (n (%))11,638 (73.1%)12,611 (74.8%) 
Mental healthNone (n (%))13,555 (85.2%)14,159 (84.0%)0.022
Alcohol (n (%))983 (6.2%)1155 (6.8%) 
Dementia/Delirium (n (%))211 (1.3%)226 (1.3%) 
Depression (n (%))642 (4.0%)760 (4.5%) 
Other (n (%))525 (3.3%)562 (6.8%) 
Readmission within 28 daysNo (n (%))13,581 (85.3%)14,341 (85.0%)0.485
Yes (n (%))2335 (14.7%)2521 (15.0%) 
  1. sd standard deviation
  2. IQR interquartile range
  3. LOS length of stay