The Patient Health Questionnaire 4 (PHQ-4) was analyzed to address the lack of evidence regarding brief depression and anxiety screening instruments in the perioperative setting.
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Although data exist that demonstrate psychometric quality of brief depression and anxiety screening instruments in the general medical field (3;7), evidence is lacking for the perioperative setting.
Kerper et al. (Tue,) reported a other. The Patient Health Questionnaire 4 (PHQ-4) was analyzed to address the lack of evidence regarding brief depression and anxiety screening instruments in the perioperative setting.
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