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Table 7 Results for the comparison between the NDG and DG in March 2020

From: Improvement in prescriptions while maintaining overall health outcomes: a prospective observational study conducted in Japanese facilities for older people

  NDG DG t-value p-value
Number of people 232 232   
 EQ-5D-5L scores
mean ± SD
0.64 ± 0.60 0.64 ± 0.44 0.036 0.97
 BI scores
mean ± SD
51.2 ± 34.5 53.8 ± 32.4 −0.75 0.46
 MMSE scores
mean ± SD
13.9 ± 9.9 15.2 ± 10.0 −1.01 0.32
 DBD scores
mean ± SD
16.8 ± 12.4 17.2 ± 12.8 −0.28 0.78
 VI scores
mean ± SD
6.9 ± 3.0 7.1 ± 2.9 −0.53 0.59
 Medication costs
JPY/day, mean ± SD
728.4 ± 619.7 351.8 ± 520.2 7.02 p < 0.001*
 Number of medications
mean ± SD
9.1 ± 3.3 5.0 ± 2.5 15.04 p < 0.001*
  1. * Statistically significant
  2. NDG (no decrease group), participants who had increased or no change in the number of prescribed medicines were classified into this group
  3. DG (decrease group), participants in whom there was a decrease in the number of prescribed medicines in March 2020 compared to that of March 2019 were classified into this group