Aim: Currently, financial sponsors and Government officials of the relevant
ministries responsible for the German health care system request comparati
ve length-of-stay figures in hospitals as indicators of efficacy of inpatie
nt treatment. In psychiatry such comparisons are considered doubtful becaus
e of the heterogeneity of patients in different hospitals. This study compa
res the length of stay in eight German psychiatric hospitals accounting for
individual as well as organisational characteristics.
Methods: Sample: 27,792 patient records according to the DGPPN-BADO (the st
andardized psychiatric assessment and discharge battery in Germany) from ei
ght hospitals with a total of 135 wards. Statistical Analysis: Variance com
ponents modelling with random effects using three levels (patients, wards,
hospitals).
Results: After adjustment for patient and organisational characteristics, t
here were no significant differences in the average length of stay between
the eight hospitals.
Conclusions: Hospital comparisons of quality of care require a multilevel a
pproach. Based on our results further comparisons and implementation of qua
lity improvements in inpatient psychiatry should focus on the ward level.