Table 2.

Correlations of various verbally administered patient assessments, standard written assessments, and evaluator global assessments.

Patient AssessmentInstrument OriginWho Reads Patient Assessment?Format of Patient’s ResponsenCorrelation with EGAnCorrelation with Written VAS
Standard GH-VASMDHAQPatientWritten3000.400
VO-GH1MDHAQPatientVerbal1000.4191000.590
VO-GH2MDHAQStaff, in personVerbal1000.4211000.658
VO-GH3MDHAQStaff, by phone in roomVerbal500.381500.593
VO-GH4MDHAQStaff, by phone after visitVerbal500.353500.376
Standard PtGA-VASDAS28PatientWritten3000.452
VO-PtGA1DAS28PatientVerbal1000.5381000.704
VO-PtGA2DAS28Staff, in personVerbal1000.4061000.657
VO-PtGA3DAS28Staff, by phone in roomVerbal500.546500.445
VO-PtGA4DAS28Staff, by phone after visitVerbal500.264500.261
  • All correlations are significant to p < 0.01, except VO-PtGA4 (p > 0.05 for correlations and Limits of Agreement). EGA: evaluator global assessment; VAS: visual analog scale; GH: global health; VO: verbally obtained; MDHAQ: Multidimensional Health Assessment Questionnaire; VO-PtGA1/VO-GH1: patient reads the global assessment questions and provides verbal numeric responses to the research assistant in person; VO-PtGA2/VO-GH2: research assistant reads the global assessment questions to the patient and the patient provides verbal numeric responses to the research assistant in person; VO-PtGA3/VO-GH3: research assistant reads the global assessment questions to the patient and the patient provides verbal numeric responses by telephone in a quiet room; VO-PtGA4/VO-GH4: research assistant reads the global assessment questions to the patient and the patient provides verbal numeric responses by telephone after the visit; DAS28: Disease Activity Score with 28-joint count.