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Table 2 Changes in the CMAI scores over time for the three groups

From: Comparison of the efficacy of aroma-acupressure and aromatherapy for the treatment of dementia-associated agitation

  Pre-test Mean ± SD Post-test Mean ± SD Post −3 weeks test Mean ± SD β (95%CI) p value
Group      
A-a group (n = 56) 54.58 ± 11.01 43.24 ± 10.00 51.21 ± 11.95 16.74(13.71—19.77) 0.00*
A group (n = 73) 41.81 ± 7.89 41.08 ± 8.24 39.80 ± 7.27 4.01(1.19—6.83) 0.01*
Control group (n = 57) 37.68 ± 4.12 41.72 ± 5.08 42.13 ± 5.53 reference  
Time      
Post-test     3.96(2.22-5.71) <0.01*
Post- 3-week     4.39(2.64-6.13) <0.01*
Group x Time      
A-a group x post-test     −15.31(−17.83 to −12.79) <0.01*
A-a group x post-3 weeks     −7.65(−10.20 to −5.11) <0.01*
A group x post-test     −4.82(−7.19 to −2.45) <0.01*
A group x post-3 weeks     −5.93(−8.31 to −3.56) <0.01*
  1. Note.; Aroma-acupressure group: A-a group; Aroma group: A group; CI: confidence interval; * p < 0.05.