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Table 6 Comparison of the NRCMS’ impact on the rural elderly’s nutrition intake across different regions

From: Medical system and nutrition improvement for the rural elderly

Dependent variables Independent variables Northeastern and eastern coastal region Central and near-western region
Coef SE P value 95% CI Coef SE P value 95% CI
Energy dnrcms*dt 77.764 94.923 0.413 (− 108.608, 264.136) 267.383 80.113 0.001 (110.213, 424.553)
dnrcms 36.385 75.518 0.630 (− 111.887, 184.657) 8.944 59.433 0.880 (− 107.655, 125.543)
dt 40.266 68.433 0.556 (− 94.096, 174.628) − 84.788 40.215 0.035 (− 163.685, − 5.892)
Control var Yes Yes
R 2 0.332   0.257   
Carbohydrates dnrcms*dt 25.558 16.412 0.120 (− 6.667, 57.782) 31.029 12.410 0.013 (6.681, 55.376)
dnrcms − 9.966 12.395 0.442 (− 34.303, 14.372) 5.831 8.998 0.517 (− 11.821, 23.483)
dt 15.847 12.084 0.190 (− 7.879, 39.584) − 7.468 6.588 0.257 (− 20.392, 5.356)
Control var Yes Yes
R 2 0.296 0.326    
Fat dnrcms*dt 0.381 4.985 0.939 (− 9.406, 10.169) 11.635 4.700 0.013 (2.414, 20.856)
dnrcms 7.794 3.791 0.040 (0.351, 15.238) − 3.239 3.211 0.313 (− 9.539, 3.061)
dt − 7.029 3.796 0.064 (− 14.482, 0.423) − 5.140 2.434 0.035 (− 9.915, − 0.365)
Control var Yes Yes
R 2 0.200 0.097    
Protein dnrcms*dt 4.609 3.399 0.175 (− 2.064, 11.282) 7.222 2.971 0.015 (1.393, 13.051)
dnrcms − 1.822 2.829 0.520 (− 7.376, 3.732) 0.456 2.282 0.842 (− 4.021, 4.932)
dt 1.245 2.360 0.598 (− 3.388, 5.878) − 2.420 1.354 0.074 (− 5.077, 0.237)
Control var Yes Yes
R 2 0.239 0.182
Obs 709     1274    
  1. Notes: Demographic variables, socio-economic variables, lifestyle variables, and provinces dummies as shown in the Table 1 are controlled in the DID model