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Table 3 Differences in the prevalence of the variables that were not matched before and after matching

From: Relationship between the severity of agitation and quality of life in residents with dementia living in German nursing homes - a secondary data analysis

  Before Matching After Matching
  No/Mild Agitation Severe Agitation p a No/Mild Agitation Severe Agitation p a
Observations 1824 123   246 123  
PSMS score, mean (SD) 19.9 (4.9) 21.3 (4.3) 0.003 20.0 (4.5) 21.3 (4.3) 0.040
Care level in % (n)       
No care dependency 0.6 (11) 1.6 (2) 0.308 0 (0) 1.6 (2) 0.095
1 (considerable care dependency) 23.0 (420) 18.7 (23)   20.3 (50) 18.7 (23)  
2 (mild care dependency) 46.1 (840) 42.3 (52)   47.6 (117) 42.3 (52)  
3 (severe care dependency) 28.7 (524) 34.2 (42)   31.7 (78) 34.2 (42)  
4 (very severe care dependency) 1.6 (29) 2.4 (3)   0.4 (1) 2.4 (3)  
Missing value 0 (0) 0.8 (1)   0 (0) 0.8 (1)  
Depression/Dysphoria, % (n) 26.1 (476) 43.9 (54) <0.001 40.2 (99) 43.9 (54) 0.575
Apathy/Indifference, % (n) 25.2 (459) 46.3 (57) <0.001 36.6 (90) 46.3 (57) 0.091
Euphoria/Elation, % (n) 6.7 (123) 17.1 (21) <0.001 13.0 (32) 17.1 (21) 0.372
Nighttime Disturbances, % (n) 23.7 (433) b 49.6 (61) <0.001 40.7 (100) 49.6 (61) 0.128
Eating Disturbances, % (n) 27.5 (501) c 46.3 (57) <0.001 31.3 (77) 46.3 (57) 0.007
  1. aCalculated using chi-square tests or ks-tests; Missing values: bn=3; cn=1; SD=standard deviation