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Table 2 Descriptive Statistics for time-dependent covariates (%)

From: Use of partitioned GMM marginal regression model with time-dependent covariates: analysis of Chinese Longitudinal Healthy Longevity Study

CovariateYear 2005Year 2008Year 2011Year 2014
Make own decisions90.2087.3889.3687.33
Consume vegetables frequently89.5691.6992.5390.95
Exercise38.0542.7048.7939.53
Transfer without assistance99.7099.4698.1795.10
Visual difficulties19.4019.5423.8029.54
Pick up book from floor while standing91.9891.6485.8577.04