TY - JOUR
AU - M. Horton
AU - A. E. Perry
A1 - 
AB - Aims and method To explore the modern psychometric properties of the Patient Health Questionnaire (PHQ-9), we used the Rasch analysis in a sample of 767 primary care patients with depression. Results The analysis highlighted dependency issues between items 1 and 2 ('Little interest or pleasure in doing things' and 'Feeling down, depressed, or hopeless'), and items 3 and 4 ('Trouble falling or staying asleep, or sleeping too much' and 'Feeling tired or having little energy'). Items 1 and 2 displayed an over-discrimination, suggesting their potential redundancy within the complete item set. Clinical implications In its current format the PHQ-9 displays some problems with regard to its measurement structure among a sample of primary care patients. These problems can be addressed by removing potentially redundant items to deliver a stable screening tool. The results also lend support for the PHQ-2 to be used as a screening tool in a primary care setting.
BT - BJPsych bulletin
C5 - Measures
CP - 5
CY - England
DO - 10.1192/pb.bp.114.050294
IS - 5
JF - BJPsych bulletin
N2 - Aims and method To explore the modern psychometric properties of the Patient Health Questionnaire (PHQ-9), we used the Rasch analysis in a sample of 767 primary care patients with depression. Results The analysis highlighted dependency issues between items 1 and 2 ('Little interest or pleasure in doing things' and 'Feeling down, depressed, or hopeless'), and items 3 and 4 ('Trouble falling or staying asleep, or sleeping too much' and 'Feeling tired or having little energy'). Items 1 and 2 displayed an over-discrimination, suggesting their potential redundancy within the complete item set. Clinical implications In its current format the PHQ-9 displays some problems with regard to its measurement structure among a sample of primary care patients. These problems can be addressed by removing potentially redundant items to deliver a stable screening tool. The results also lend support for the PHQ-2 to be used as a screening tool in a primary care setting.
PP - England
PY - 2016
SN - 2056-4694; 2056-4694
SP - 237
EP - 243
EP - 
T1 - Screening for depression in primary care: a Rasch analysis of the PHQ-9
T2 - BJPsych bulletin
TI - Screening for depression in primary care: a Rasch analysis of the PHQ-9
U1 - Measures
U2 - 27752340
U3 - 10.1192/pb.bp.114.050294
VL - 40
VO - 2056-4694; 2056-4694
Y1 - 2016
ER -