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Table 1 Characteristics of the study population

From: Do children’s previous dental experience and fear affect their perceived oral health-related quality of life (OHRQoL)?

Sociodemographic variables N % Dental history and experience N %
Age (years) (n = 1,312) Dental visit ever (n = 1,295)
 11–12 653 50  Yes 1,158 89
 13–14 659 50  No 137 11
Gender (n = 1,312) Dental visit in the last 3 months (n = 1,271)
 Male 719 55  Yes 414 33
 Female 593 45  No 857 67
Birth order (n = 1,312) Reason for most recent dental visit (n = 1,287)a
 First 302 23  Regular check-up 101 8
 2-3 510 39  Pain 782 61
 4+ 500 38  Filling 464 36
Number of siblings (n = 1,312)  Esthetic 148 12
 0–3 455 35  Other 119 9
 4–5 476 36 Procedure at previous dental visit/s (n = 1,286)a
 6+ 381 29  Examination 536 42
Family income (n = 1,312)  Local anesthesia 186 15
 Low 119 9  Extraction 448 35
 Middle 933 71  Filling 565 44
 High 260 20  Prophylaxis 189 15
Mother’s education (n = 1,308)  Other 82 6
 Less than secondary 334 26 Behavior during previous dental visit/s (n = 1,295)b
 Secondary 508 39  Good 744 57
 University 466 36  Poor 444 34
Father’s education (n = 1,289)  I don’t know 107 8
 Less than secondary 200 16 Fear (CFSS-DS) (n = 1,312)
 Secondary 449 35  Fearful (score ≥32) 265 20
 University 640 50  Non-fearful 1,047 80
General health variables Untreated caries (n = 1,312)
Health problems (n = 1,269)  Yes 1,012 77
 Yes 188 15  No 300 23
 No 1,081 85 DMFT (mean (SD)) 4.0 (3.2)  
Hospitalization (n = 1,283)     
 Yes 308 24    
 No 975 76    
  1. Abbreviations: DMFT Decayed Missing and Filled Permanent Teeth; CFSS-DS Children’s Fear Survey Schedule-Dental Subscale; SD Standard deviation.
  2. aAnswer categories are not mutually exclusive
  3. bReported by parents