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Table 2 Descriptive statistics

From: Socioeconomic inequalities in self-perceived oral health among adults in Chile

Variable Mean SD N
OHIP-14 score 33.29 12.05 1413
Socioeconomic and demographic characteristics
 Sex 0.28 0.45 1413
 Age    
  18–30 0.16 0.37 1413
  31–40 0.24 0.43 1413
  41–50 0.36 0.48 1413
  51–61 0.25 0.43 1413
 Head of household 0.70 0.46 1413
 Married/partner 0.50 0.50 1394
 Children under 5 0.21 0.47 1413
 Children aged 5–18 0.91 1.03 1413
Education
 Middle or less 0.17 0.38 1394
 Incomplete secondary school 0.19 0.39 1394
 Complete secondary school 0.45 0.50 1394
 Higher Education 0.20 0.40 1394
Employed full time 0.47 0.50 1413
Employed part time 0.20 0.40 1413
Healthcare system
 Public Insurance A (most vulnerable) 0.29 0.46 1413
 Public Insurance B 0.30 0.46 1413
 Public Insurance C 0.26 0.44 1413
 Public Insurance D (least vulnerable) 0.14 0.34 1413
 Public Insurance unknown category 0.01 0.12 1413
Clinically assessed oral health
 Any missing front teeth 0.35 0.48 1413
Caries
 Less than 6 0.84 0.37 1413
 6–11 0.14 0.35 1413
 12 or more 0.02 0.14 1413
Teeth lost due to caries
 Less than 6 0.44 0.50 1413
  6–11 0.31 0.46 1413
  12 or more 0.25 0.43 1413
 Malocclusion 0.81 0.40 1413
Instrumental variables
 Distance to subway 0.50 0.50 1413
Travel time to campus
 Tertile 1 0.49 0.50 1413
 Tertile 2 0.41 0.49 1413
 Tertile 3 0.10 0.30 1413
Other variables of interest
Oral health and behaviour
  Any missing teeth 0.93 0.26 1413
  Any caries 0.98 0.14 1413
  Prosthetic need 0.84 0.37 1413
  Reported daily tooth brushing frequency 2.75 0.87 1413
  Dental visit within past year 0.32 0.47 1413
  Bad or regular self-rated oral health 0.98 0.14 1413
 Rosenberg self-esteem scale 27.94 4.42 1413
  1. Abbreviation: SD standard deviation, N number of observations