Koopmans, G.T.

health study distress utilization service depressive complaints health care utilization condition depressive complaint depression measure patient illness effect health care morbidity disorder model association symptom health care services treatment variable difference gender hospital journal scale finding admission factor level medication psychiatry disease sample problem relation result number survey adherence population crisis health care use research outpatient group anxiety crisis plan outcome medicine table status period review inpatient health problems analyses health services symptom perception indicator disability fatigue consultation impact specialist severity .000 ormel interaction participant category perception women analysis service use restriction clinician