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Table 1 Oral Health literacy according to sample characteristics, Piracicaba, Brazil, 2010

From: Oral health literacy and oral health outcomes in an adult population in Brazil

Variables Low oral health literacy n (%) High oral health literacy n (%) Odds ratio (95% CI) p value
Age (years) 45–64 83 (71.5) 27 (28.5) 1.84 (0.97–3.46) 0.061
20–44 84 (62.7) 54 (37.3) 1  
Sex Male 47 (68.3) 23 (31.7) 1.28 (0.64–2.50) 0.480
Female 121 (73.2) 58 (26.8) 1  
Social class Lower 30 (71.5) 8 (28.5) 4.71 (1.43–15.46) 0.012
Lower middle 121 (74.8) 46 (25.2) 3.95 (1.84–8.49) 0.001
Middle 16 (42.9) 27 (57.1) 1  
Service used Public 39 (68.7) 16 (31.3) 0.71 (0.33–1.55) 0.378
Insurance 41 (66.0) 17 (34.0) 0.63 (0.22–1.83) 0.383
Private 85 (75.5) 46 (24.5) 1  
Service evaluation Not Good 29 (85.9) 6 (14.1) 2.64 (0.97–7.16) 0.056
Good 136 (69.8) 74 (30.2) 1  
Frequency of dental visits Emergency 102 (81.8) 30 (18.2) 3.04 (1.60–5.80) 0.001
Regularly 62 (59.7) 51 (40.3)   
Reason for the use of dental services Pain 44 (85.4) 11 (14.6) 3.27 (1.56–6.82) 0.003
Need 39 (75.1) 15 (24.9) 1.68 (0.66–4.27) 0.265
Routine 78 (64.2) 53 (35.8)   
Tooth brushing ≤2 per day 68 (71.5) 21 (28.5) 2.12 (1.00–4.47) 0.050
3+ per day 99 (66.4) 60 (33.6) 1  
Tooth flossing irregularly 109 (71.5) 39 (28.5) 1.55 (0.84–2.89) 0.158
regularly 58 (66.0) 42 (34.0) 1  
Impact on OHRQoL Yes 89 (71.5) 26 (18.6) 2.65 (1.19–5.89) 0.018
No 78 (62.3) 55 (37.7) 1  
Decayed teeth Yes 69 (79.8) 22 (20.2) 1.95 (1.00–3.79) 0.031
No 98 (67.0) 59 (33.0) 1  
Missing teeth More than 13 teeth 45 (80.2) 13 (19.8) 0.55 (0.23–1.36) 0.188
Up to 12, including anterior teeth 39 (56.7) 23 (43.3) 1.00 (0.41–2.47) 0.996
Up to 12, including posterior teeth 42 (80.2) 15 (19.2) 0.32 (0.10–1.04) 0.058
No 41 (69.0) 29 (31.0)   
Filled teeth Yes 140 (70.0) 72 (30.0) 1.89 (0.74–4.81) 0.177
No 27 (81.5) 9 (18.5) 1  
CAL > 4 mm Yes 20 (25.6) 62 (74.4) 1.28 (0.66–2.52) 0.450
No 105 (69.4) 61 (30.6) 1  
Dental plaque Yes 77 (78.7) 24 (21.3) 1.90 (0.90–4.01) 0.090
No 85 (66.1) 56 (33.9) 1  
Bleeding gum Yes 86 (68.6) 45 (31.4) 1.36 (0.83–2.23) 0.214
No 81 (74.8) 36 (25.2) 1  
  1. OHRQoL Oral Health Related Quality of Life, CAL Clinical Attachment Loss, CI Confidence Interval
  2. Bold numbers represent significant p values