Roles of short form-36 health survey scale in the evaluation of quality of life in patients with deep vein thrombosis

Abstract

To explore the roles of short form-36 health survey scale in the evaluation of deep vein thrombosis (DVT) patients. A total of 179 DVT patients were recruited from Department of Vascular and Thyroid Surgery, First Affiliated Hospital, Xinjiang Medical University from June 2009 to March 2013. They were surveyed with short form-36 health survey scale. Then the feasibility, reliability, validity, responsibility, ceiling effect and floor effect were analyzed. Feasibility analysis: completion time was (10.4 ± 2.9) min and finishing rate 100%. Reliability analysis: all split-half reliability coefficients and Cronbach's α were above 0.8. all internal consistency coefficients were above 0.6. Validity analysis: all Pearson coefficients were above 0.6. Two principal components were extracted by factor analysis and it accounted for 67.011% of total variance. After maximal variance rotation, two common factors were generated. And it was almost the same with the theoretic structural assumption of scale. Responsibility analysis: all score of every degree at post-treatment were higher than at pre-treatment. And it was statistically significant (P < 0.01). Ceiling and floor effects: there was remarkable ceiling effect on role physical (RP) and emotional role (RE) (24.81%, 36.62%). Remarkable floor effect on RP was 31.76%. Short form-36 health survey scale is satisfactory in the evaluation of quality of life among DVT patients. But specific items need further improvement.