Christina C. Wee|Roger B. Davis|Mary Beth Hamel
Comparing the SF-12 and SF-36 health status questionnaires in patients with and without obesity
Beth Israel Deaconess Medical Center|Harvard University|Beth Israel Deaconess Medical Center|Harvard University|Beth Israel Deaconess Medical Center|Harvard University
assess well sf36 wellvalidated generic quality life qol instrument compares shorter adaptation sf12 capturing differences qol among patients without obesitywe compared correlation physical pcs mental mcs component summary measures sf12 sf36 among 356 primary care patients using pearson coefficients r conducted linear regression models see summary measures captures variation across bmi used model r2 assess qualitatively well measure explained variation across bmicorrelations sf12 sf36 higher pcs obese r 089 compared overweight r 073 normal weight patients r 075 p 0001 similar mcs across bmi compared normal weight patients obese patients scored 88 points lower pcs12 57 points lower pcs36 adjustment age sex race model r2 higher pcs12 r2 022 pcs36 r2 016 bmi significantly associated either mcs12 mcs36the sf12 correlated highly sf36 obese nonobese patients appeared better measure differences qol associated bmi