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

Table 3 City Hospital - Ordinary Least Square estimated coefficients with individual and episode fixed effects, based upon 72,929 admissions for 48,229 patients

	Estimate	Standard error	t-value	p-value
Intercept	0.616	0.012
MH - none	Reference
Alcohol	0.156	0.017	9.11	< 0.001
Delirium	0.995	0.175	5.70	< 0.001
Dementia	0.958	0.035	18.66	< 0.001
Depression	0.208	0.019	10.72	< 0.001
Multiple MH	0.066	0.030	2.18	0.035
Psychosis	0.322	0.040	7.97	< 0.001
Age 16–40	Reference
40–50	0.195	0.014	14.25	< 0.001
50–60	0.332	0.014	23.59	< 0.001
60–70	0.511	0.014	37.68	< 0.001
70–80	0.799	0.013	62.10	< 0.001
80–109	1.125	0.014	82.39	< 0.001
Time per year	−0.044	0.008	−5.44	< 0.001
Step change	0.045	0.057	0.79	0.430
Change of slope	−0.010	0.024	−0.42	0.674

ISSN: 1471-244X