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Table 5 Findings for discriminant validity of the ECOHIS score using two methods to manage "Don't know" responses

From: Cross - cultural adaptation and preliminary validation of the Turkish version of the Early Childhood Oral Health Impact Scale among 5-6-year-old children

   Mean imputation method (n = 121)   Complete case analysis (n = 115)
Variables   Child Section Family section   Child Section Family section
Number of decayed teeth a n Mean (SD) Mean (SD) n Mean (SD) Mean (SD)
None (A) 28 5.57 (4.28)C* 0.67 (1.02)C* 27 5.37 (4.23)C* 0.63 (1.00)C*
1-3 (B) 42 5.33 (4.30)C* 1.09 (1.58)C* 38 5.02 (4.30)C* 1.00 (1.62)C*
≥ 4 (C) 51 16.66 (4.71)A, B* 5.56 (2.95)A, B* 50 16.68 (4.76)A, B* 5.64 (2.93)A, B*
P - value   < 0.001 < 0.001   < 0.001 < 0.001
Child's dental attendance pattern a   Mean (SD) Mean (SD)   Mean (SD) Mean (SD)
Never (A) 63 8.33 (6.87)B* 2.14 (2.07)B* 60 8.23 (6.96)B* 2.16 (2.11)B*
Problem based (B) 22 14.45 (6.26)A, C* 5.27 (3.52)A, C* 21 14.52 (6.41)A* 5.42 (3.52)A, C*
Regular dental check - ups (C) 36 10.75 (6.99)B* 2.72 (3.85)B* 34 10.91 (7.13) 2.73 (3.96)B*
P-value   0.002 0.001   0.002 0.001
  1. SD, standard deviation
  2. a Statistical evaluation by the Kruskal-Wallis test
  3. *Significant differences among groups according to Mann-Whitney U-test with Bonferroni correction (P < 0.0167)