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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
Transfer without assistance99.7099.4698.1795.10
Visual difficulties19.4019.5423.8029.54
Pick up book from floor while standing91.9891.6485.8577.04