Psychometric evaluation and linking of the PHQ-9, QIDS-C, and VQIDS-C in a real-world population with major depressive disorder.
Emily O C PalmerSheryl KerMiguel E RenteríaThomas CarmodyA John RushPublished in: Neuropsychiatric disease and treatment (2024)
Overall, PHQ-9, QIDS-C, and VQIDS-C appear to be reliable and convertible measures of MDD symptomology within a US-based adult population in a real-world clinical setting.