04/25/23 DHHS/NIH/NIA/BSR

National Health Measurement Study

Dennis Fryback PI

P01AG020679

Jeffrey W. Elias Ph.D - NIA

Project 1: Complete national survey benchmarking cross-sectional norms simultaneously on 5 Health Related QOL measures:

SF36.v2 QWB-SA HUI2/3.

EQ-5D & HALex

National Health Measurement StudyProject 1 (Leader Dennis Fryback _University of Wisconsin)

a) requires a computer assisted telephone interview (random digit dialed) of 2,800 non-institutionalized persons , age 35-89 to establish age-specific and gender norms (large subset of African Americans) simultaneously on the 5 HRQOL measures.

b) allows discrimination among common self-reported conditions and means and SD’s for persons reporting and not reporting each condition

National Health Measurement Study

c) Project 1

will develop cross-walk regression equations between pairs of measures to eventually allow predictions of summary scores on each measure from the other measures.

d) will develop a public use data set.

National Health Measurement Study

Project 2 (Leader Robert Kaplan UCLA)

a) will compare measures of HRQOL in cohorts of patients with heart failure (N = 450) or cataracts N= 450).

b) evaluates the responsiveness of measures to change in status and treatment over time (1-6 months post intervention).

National Health Measurement Study

Project 3 (Leader Theodore Ganiats UCSD)

a) develop measures of symptom duration that patients think that are important for 5 disease states

b) quantitatively evaluate how symptom duration affects valuation of HRQOL via vignettes and HRQOL scales

National Health Measurement Study

Project 4 (Leader Ronald Hays UCLA)

a) assess impact of psychometric equivalence of mode of administration: self, mailed, telephone interview administered

b) examine central tendency, missing data, variance, reliability, item difficulty, item discrimination

National Health Measurement Study