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Table 2 Distributions and dental visiting by sex, age, income, tooth brushing, and insurance

From: Household income modifies the association of insurance and dental visiting

  Distributions Regular dental visits   Check-up visits   Adjusted effects: regular dental visits   Adjusted effects: check-up visits  
  % % P value   % P value   PR (95 % CI) P value   PR (95 % CI) P value  
Sex              
Male 42.3 69.2 0.1579 NS 46.8 0.0462 * 0.98 (0.91, 1.05) 0.5138 NS 0.89 (0.78, 1.01) 0.0688 NS
Female 57.7 73.2    53.1    Ref.    Ref.   
Age group              
30-39 yrs 24.7 67.6 0.0473 * 57.0 0.0486 * Ref.    Ref.   
40-49 yrs 32.9 69.9    49.3    1.06 (0.96, 1.16) 0.2607 NS 0.85 (0.74, 0.98) 0.0214 *
50-61 yrs 42.5 75.7    47.6    1.11 (1.02, 1.21) 0.0154 * 0.83 (0.72, 0.95) 0.0084 **
Household income              
Up to $60,000 35.2 62.9 <0.0001 ** 41.0 <0.0001 ** 0.78 (0.65, 0.93) 0.0073 ** 0.65 (0.50, 0.83) 0.0008 **
$60,001-100,00 32.2 73.9    52.0    0.85 (0.70, 1.04) 0.1154 NS 0.68 (0.51, 0.91) 0.0101 *
>$100,000 32.6 78.6    60.4    Ref.    Ref.   
Tooth brushing              
Twice a day or more 57.5 78.7 <0.0001 ** 57.0 <0.0001 ** 1.19 (1.10, 1.28) <0.0001 ** 1.26 (1.10, 1.44) 0.0006 **
Less than twice a day 42.5 62.2    41.7    Ref.    Ref.   
Dental insurance              
Insured 53.9 83.2 <0.0001 ** 60.8 <0.0001 ** 1.18 (1.01, 1.36) 0.0316 * 1.13 (0.92, 1.39) 0.2283 NS
Uninsured 46.1 57.7    38.3    Ref.    Ref.   
Interaction              
Up to $60,000 × Insured - -    -    1.28 (1.04, 1.56) 0.0177 * 1.33 (0.97, 1.82) 0.0754 NS
$60,001-100,00 × Insured - -    -    1.17 (0.95, 1.45) 0.1454 NS 1.40 (1.01, 1.94) 0.0425 *
  1. Notes.
  2. Chi-Square statistic, *(P < 0.05), **(P < 0.01).
  3. PR: Prevalence Ratio.
  4. †: On average visit a dental practitioner at least once every two years.