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. 2014 Aug 4;14:95. doi: 10.1186/1472-6831-14-95

Table 2.

Regression analysis of the OHIP-49 items and prevalence of negative impact among subjects

Domains and items a R 2 for OHIP-14Sp s R 2 for OHIP-14 (Slade) % Subjects with negative impact
OHIP-49Sp
  
  
  
Functional limitation
Q1: difficulty chewing
 *
 *
 0.54
Q2: trouble pronouncing words
 *
 0.016
 0.35
Q3: noticed tooth that doesn’t look right
 *
 *
 0.48
Q4: appearance affected
 *
 *
 0.42
Q5: breath stale
 0.05
 *
 0.46
Q6: taste worse
 *
 0.032
 0.43
Q7: food catching
 *
 *
 0.75
Q8: digestion worse
 0.10
 *
 0.19
Q9: dentures not fitting
 *
 *
 0.40
Physical pain
  
  
  
Q10: painful aching
 *
 0.024
 0.37
Q11: sore jaw
 *
 *
 0.28
Q12: headaches
 *
 *
 0.08
Q13: sensitive teeth
 0.14
 *
 0.33
Q14: toothache
 0.05
 *
 0.35
Q15: painful gums
 *
 *
 0.47
Q16: uncomfortable to eat
 *
 0.14
 0.59
Q17: sore spots
 *
 *
 0.46
Q18: uncomfortable dentures
 *
 *
 0.39
Psychological discomfort
  
  
  
Q19: worried by dental problems
 *
 *
 0.68
Q20: self-conscious
 *
 0.057
 0.41
Q21: dental problems made you miserable
 0.03
 *
 0.33
Q22: felt uncomfortable about the appearance
 0.03
 *
 0.39
Q23: felt tense
 *
 0.56
 0.36
Physical disability
  
  
  
Q24: speech unclear
 0.04
 *
 0.34
Q25: others misunderstood
 0.06
 *
 0.21
Q26: less flavor in food
 *
 *
 0.43
Q27: unable to brush teeth
 *
 *
 0.25
Q28: avoid eating
 *
 *
 0.47
Q29: diet unsatisfactory
 *
 0.003
 0.22
Q30: unable to eat (dentures)
 *
 *
 0.25
Q31: avoid smiling
 *
 *
 0.33
Q32: interrupt meals
 *
 0.004
 0.30
Psychological disability
  
  
  
Q33: sleep interrupted
 0.11
 *
 0.10
Q34: upset
 0.05
 *
 0.26
Q35: difficult to relax
 *
 0.087
 0.27
Q36: depressed
 *
 *
 0.27
Q37: concentration affected
 *
 *
 0.20
Q38: been embarrassed
 *
 0.006
 0.39
Social disability
  
  
  
Q39: avoid going out
 *
 *
 0.16
Q40: less tolerant of others
 0.03
 *
 0.11
Q41: trouble getting on with others
 *
 *
 0.20
Q42: irritable with others
 *
 0.002
 0.12
Q43: difficulty doing jobs
 0.09
 0.007
 0.11
Handicap
  
  
  
Q44: your general health has worsened
 *
 *
 0.21
Q45: financial loss
 *
 *
 0.15
Q46: unable to enjoy people’s company
 *
 *
 0.20
Q47: life unsatisfying
 *
 0.011
 0.28
Q48: unable to function
 0.06
 0.001
 0.11
Q49: unable to work 0.02 * 0.11

aItems selected for the OHIP-14Sp.

sItems of the original OHIP-14 developed by Slade.

*:Data not shown. Only R2 scores for questions included in the OHIP-14 are presented.