The value of adding the Quality of Life Enjoyment and Satisfaction Questionnaire to outcome assessments of psychiatric inpatients with mood and affective disorders

In the domain of mental health outcomes, increasing interest has been shown in complementing traditional symptom measures with measures of a patient's quality of life. The objective of this study was to evaluate the value of including the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) in the routine assessment battery used at a psychiatric hospital. The sample consisted of 1,276 consecutive inpatients treated at a private psychiatric hospital over a two-year period. Admission and discharge data were collected for the Q-LES-Q, the mental health subscales of the Medical Outcomes Short Form Questionnaire (SF-36), the Depression Anxiety Stress Scales, and the Health of the Nation Outcome Scale. Large patient improvements from admission to discharge were seen across all instruments (effect sizes from 0.8 to 1.5), including the Q-LES-Q (effect size 1.3). The Q-LES-Q correlated with existing symptom measures, and regression analyses revealed that quality of life predicted length of hospital stay even after symptoms of depression and anxiety were taken into account. Although the Q-LES-Q was correlated with symptom measures already in use, it added to the ability to predict patient length of stay, and showed some divergence from measures of clinical outcomes. This pattern was seen despite intentionally restricting the sample to patients with mood and affective disorder diagnoses. The value of considering quality of life in a comprehensive assessment of mental health outcomes is discussed.