https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 The Accuracy of the Patient Health Questionnaire-9 Algorithm for Screening to Detect Major Depression: An Individual Participant Data Meta-Analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39521 Wed 27 Jul 2022 14:01:33 AEST ]]> A case study of an individual participant data meta-analysis of diagnostic accuracy showed that prediction regions represented heterogeneity well https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50683 Wed 24 Apr 2024 11:33:08 AEST ]]> Patient Health Questionnaire-9 scores do not accurately estimate depression prevalence: individual participant data meta-analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38957 Wed 16 Mar 2022 14:12:17 AEDT ]]> Estimating the sample mean and standard deviation from commonly reported quantiles in meta-analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48649 Fri 24 Mar 2023 15:57:41 AEDT ]]> Equivalency of the diagnostic accuracy of the PHQ-8 and PHQ-9: a systematic review and individual participant data meta-analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38673 N = 27). At cutoff 10, the PHQ-8 was less sensitive by 0.02 (−0.06 to 0.00) and more specific by 0.01 (0.00 to 0.01) among those studies (N = 27), with similar results for studies that used other types of interviews (N = 27). For all 54 primary studies combined, across all cutoffs, the PHQ-8 was less sensitive than the PHQ-9 by 0.00 to 0.05 (0.03 at cutoff 10), and specificity was within 0.01 for all cutoffs (0.00 to 0.01). Conclusions: PHQ-8 and PHQ-9 total scores were similar. Sensitivity may be minimally reduced with the PHQ-8, but specificity is similar.]]> Fri 22 Apr 2022 15:27:36 AEST ]]>