Figure 2From: Change of water consumption and its potential influential factors in Shanghai: A cross-sectional study Receiver operating characteristic (ROC) curve for four backward stepwise logistic regression models. The areas under curve (AUC) and their 95% CI for each model were 0.86 (0.83–0.90), 0.89 (0.85–0.92), 0.87 (0.84–0.91) and 0.77 (0.70–0.83), respectively.Back to article page