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Table 5 The impact of the NRCMS on the nutrition intake for adults (aged between 18 and 55 in 2000) based on a DID model

From: Medical system and nutrition improvement for the rural elderly

Dependent variables Independent variables Coef SE P value 95% CI
Energy dnrcms*dt 166.152 30.973 0.000 (105.436, 226.869)
dnrcms 38.184 24.195 0.115 (− 9.246, 85.613)
dt − 135.492 20.189 0.000 (− 175.070, − 95.915)
Control variables Yes
R 2 0.205
Carbohydrates dnrcms*dt 15.436 5.270 0.003 (5.105, 25.767)
dnrcms 9.828 4.117 0.017 (1.758, 17.899)
dt − 24.258 3.435 0.000 (− 30.992, − 17.524)
Control variables Yes
R 2 0.230
Fat dnrcms*dt 8.375 1.793 0.000 (4.859, 11.890)
dnrcms − 0.422 1.401 0.763 (− 3.169, 2.324)
dt − 3.766 1.169 0.001 (− 6.057, − 1.474)
Control variables Yes
R 2 0.133
Protein dnrcms*dt 5.582 1.050 0.000 (3.523, 7.640)
dnrcms 0.0003 0.820 1.000 (− 1.608, 1.608)
dt − 2.384 0.684 0.000 (− 3.725, − 1.042)
Control variables Yes
R 2 0.173
Obs 6633    
  1. Notes: Demographic variables, socio-economic variables, lifestyle variables, and provinces dummies as shown in the Table 1 are controlled in the DID model