OBJECTIVE: Item 9 of the Patient Health Questionnaire-9 (PHQ-9), which inquires about both passive thoughts of death and active ideas of self-harm, has been used to assess suicide risk in arthritis. The objectives of this study were 1) to determine the proportion of systemic sclerosis (SSc; scleroderma) patients who responded "yes" to item 9 who endorsed active suicidal ideation in response to more direct questions during a structured clinical interview, and 2) to report whether the PHQ-8, which does not include item 9 from the PHQ-9, performs similarly to the PHQ-9. METHODS: Patients were recruited from the Canadian Scleroderma Research Group Registry. The PHQ-9 and Composite International Diagnostic Interview (CIDI) depression module were administered during a phone interview. Scores on the PHQ-8 were calculated by removing item 9 from the PHQ-9. Item 9 responses were compared to suicidal ideation and intent in the last year based on the CIDI. Scores on the PHQ-8 and PHQ-9 were compared using Pearson's correlations. RESULTS: There were 345 patients interviewed, of whom 31 (9.0%) endorsed item 9 of the PHQ-9. Of those, based on the CIDI, 14 (45.2%) had passive thoughts of suicide or death. Only 1 patient (3.2%) had thoughts about suicide in some detail at any point in the last 12 months. The correlation between PHQ-9 and PHQ-8 scores was 0.998. CONCLUSION: Item 9 appears to identify many patients who do not report active suicidal ideation. The PHQ-8 may be a better option for assessment of depressive symptoms than the PHQ-9 in patients with SSc.
OBJECTIVE: Item 9 of the Patient Health Questionnaire-9 (PHQ-9), which inquires about both passive thoughts of death and active ideas of self-harm, has been used to assess suicide risk in arthritis. The objectives of this study were 1) to determine the proportion of systemic sclerosis (SSc; scleroderma) patients who responded "yes" to item 9 who endorsed active suicidal ideation in response to more direct questions during a structured clinical interview, and 2) to report whether the PHQ-8, which does not include item 9 from the PHQ-9, performs similarly to the PHQ-9. METHODS:Patients were recruited from the Canadian Scleroderma Research Group Registry. The PHQ-9 and Composite International Diagnostic Interview (CIDI) depression module were administered during a phone interview. Scores on the PHQ-8 were calculated by removing item 9 from the PHQ-9. Item 9 responses were compared to suicidal ideation and intent in the last year based on the CIDI. Scores on the PHQ-8 and PHQ-9 were compared using Pearson's correlations. RESULTS: There were 345 patients interviewed, of whom 31 (9.0%) endorsed item 9 of the PHQ-9. Of those, based on the CIDI, 14 (45.2%) had passive thoughts of suicide or death. Only 1 patient (3.2%) had thoughts about suicide in some detail at any point in the last 12 months. The correlation between PHQ-9 and PHQ-8 scores was 0.998. CONCLUSION: Item 9 appears to identify many patients who do not report active suicidal ideation. The PHQ-8 may be a better option for assessment of depressive symptoms than the PHQ-9 in patients with SSc.
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Authors: Linda Kwakkenbos; Lisa R Jewett; Murray Baron; Susan J Bartlett; Dan Furst; Karen Gottesman; Dinesh Khanna; Vanessa L Malcarne; Maureen D Mayes; Luc Mouthon; Serge Poiraudeau; Maureen Sauve; Warren R Nielson; Janet L Poole; Shervin Assassi; Isabelle Boutron; Carolyn Ells; Cornelia Hm van den Ende; Marie Hudson; Ann Impens; Annett Körner; Catarina Leite; Angela Costa Maia; Cindy Mendelson; Janet Pope; Russell J Steele; Maria E Suarez-Almazor; Sara Ahmed; Stephanie Coronado-Montoya; Vanessa C Delisle; Shadi Gholizadeh; Yeona Jang; Brooke Levis; Katherine Milette; Sarah D Mills; Ilya Razykov; Rina S Fox; Brett D Thombs Journal: BMJ Open Date: 2013-08-07 Impact factor: 2.692