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Table 2 Characteristics of the study participants based on cluster analysis

From: The effect of cognitive appraisal for stressors on the oral health-related QOL of dry mouth patients

  Severe oral dryness (cluster 1) Positive cognitive style (cluster 2) Negative cognitive style (cluster 3) F
n 44 42 20  
Age 63.39 (11.85) 64.20 (15.60) 58.70 (16.72) 1.04 n.s.
Female (n/%) 38/86% 32/76% 14/70% 2.63a n.s.
Subjective oral dryness 6.41 (1.69) 4.01 (1.95) 1.80 (1.20) 53.23*** C1 > C2 > C3
CARS appraisal for effect 4.91 (1.48) 1.79 (1.20) 4.65 (1.42) 63.45*** C1,C3 > C2
CARS appraisal for threat 3.45 (2.06) 0.79 (1.09) 4.25 (1.97) 37.82*** C1,C3 > C2
CARS commitment 5.59 (0.66) 2.60 (1.01) 4.90 (1.41) 105.82*** C1 > C3 > C2
OHP-14 34.91 (11.75) 23.76 (6.77) 23.06 (9.43) 17.42*** C1 > C2,C3
  1. Number in parentheses represents the standard deviation.
  2. Comparing the three groups, each score was analysed by ANOVA, excluding the male to female (a) ratio which was analysed by chi-square test.
  3. ***p < 0.001.