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Table 4 Mixed-effects model 2 (k = 68)

From: Differential HbA1c response in the placebo arm of DPP-4 inhibitor clinical trials conducted in China compared to other countries: a systematic review and meta-analysis

   Standard error z value p value Lower 95 % confidence interval Upper 95 % confidence interval
Intercept -0.055 0.035 -1.565 0.118 -0.123 0.014
Factor(location)1 -0.203 0.073 -2.803 0.005 -0.346 -0.061
Factor(location)2 0.22 0.062 3.546 <.001 0.098 0.342
  1. The model is fitted with location as moderator. Location was regarded as categorical variable, 1 for China, 2 for Japan and 0 for others