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Table 2 Exploratory factor analysis of the CDC HRQOL-4, BRFSS 2013

From: Summarizing health-related quality of life (HRQOL): development and testing of a one-factor model

Factor Eigenvalue Percentage of explained variance Accumulated Percentage of explained variance
factor 1 1.76 99.9 99.9
factor 2 <0.01 0.1 100.0