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Table 2 Admissions data at Queen Elizabeth 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

CharacteristicLevelBeforeAfterp-value
Number of admissions/stays 15,82315,018 
Number of patients 12,25711,614 
LOS (median IQR) 3 [1, 7]3 [1,7]0.424
Log LOS (mean (sd)) 1.25 (1.05)1.26 (1.06)0.291
Age (mean (sd)) 53.75 (18.49)54.52 (18.43)< 0.001
Age16–40 (n (%))3821 (24.1%)3407 (22.7%)0.057
40–50 (n (%))2348 (14.8%)2245 (14.9%) 
50–60 (n (%))2843 (18.0%)2697 (18.0%) 
60–70 (n (%))3222 (20.4%)3099 (20.6%) 
70–80 (n (%))2524 (16.0%)2481 (16.5%) 
80–109 (n (%))1074 (6.8%)1089 (7.3%) 
Admission typeElective (n (%))8916 (56.3%)8330 (55.5%)0.112
Other (n (%))6907 (43.7%)6688 (44.5%) 
Mental healthNone (n (%))15,167 (95.9%)14,395 (95.9%)0.433
Alcohol (n (%))185 (1.2%)169 (1.1%) 
Dementia/Delirium (n (%))24 (0.2%)28 (0.2%) 
Depression (n (%))303 (1.9%)312 (2.1%) 
Other (n (%))144 (0.9%)114 (0.8%) 
Readmission within 28 daysNo (n (%))12,814 (81.0%)12,083 (80.5%)0.247
Yes (n (%))3009 (19.0%)2935 (19.5%) 
  1. sd standard deviation
  2. IQR interquartile range
  3. LOS length of stay