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Table 3 Factors associated with OHRQoL among adults residing in Piracicaba, SP, Brazil, 2011

From: Impact of tooth loss related to number and position on oral health quality of life among adults

Factor Total N % OHIP prevalence n/% PR p OHIP severity mean (CI95%) PRR p
All 248 (100) 115 (48.1)    10.21 (7.85-12.57)   
Demographic Sex Male 69 (33.5) 28 (28.3) 0.72 0.16 8.54 (3.99-13.09) 0.95 0.69
Female 179 (66.5) 87 (71.7) 1 11.05 (9.42-12.68) 1
Age (years) 45–64 110 (69.1) 55 (71.5) 1.30 0.19 10.19 (6.59-13.79) 1.18 0.19
20–44 138 (30.9) 60 (28.5) 1 10.25 (8.22-12.28) 1
Socioeconomic Social Class Lower 38 (13.3) 23 (15.9) 3.54 0.02 14.75 (11.53-17.96) 2.21 <0.01
High Lower 167 (75.2) 79 (76.5) 2.07 10.0 (6.83-13.17) 1.58
Medium 43 (11.5) 13 (7.6) 1 6.31 (4.78-7.84) 1
Education level Up 4 years 43 (28.5) 25 (29.6) 2.39 <0.01 9.74 (3.53-15.96) 1.49 <0.01
5-11 years 69 (29.2) 40 (34.8) 2.37 11.92 (8.52-15.32) 1.61
+ 11 years 136 (42.4) 50 (35.6) 1 9.34 (7.53-11.16) 1
Personal income Up to 1 MS 96 (38.7) 59 (52.3) 2.95 <0.01 14.23 (10.81-17.66) 1.84 <0.01
1- 2 MS 54 (17.6) 23 (15.9) 1.37 11.12 (6.64-15.59) 1.30
+ 2 MS 94 (43.7) 33 (31.8) 1 6.66 (4.09-9.23) 1
Use of dental care Service used Public 55 (19.0) 35 (25.2) 2.01 <0.01 16.42 (13.27-19.58) 1.55 <0.01
Insurance 58 (27.0) 18 (19.4) 0.52 6.58 (3.81-9.34) 0.74
Private 131 (54.0) 61 (55.4) 1 9.91 (7.34-12.48) 1
Frequency of dental visits Emergency 132 (52.4) 73 (55.3) 2.26 <0.01 13.17 (10.81-15.53) 1.81 <0.01
Regular 113 (47.6) 40 (41.3) 1 6.87 (4.77-8.97) 1
Reason for dental care Use Pain 55 (20.6) 32 (26.7) 2.75 <0.01 15.47 (11.39-19.55) 1.93 <0.01
Need 54 (24.7) 33 (33.5) 3.11 13.75 (9.72-17.77) 1.94
Routine 131 (54.7) 44 (39.8) 1 6.55 (4.42-8.68) 1
Health behaviour Tooth Brushing ≤2 per day 89 (35.9) 48 (44.9) 0.62 0.08 13.40 (10.24-16.56) 1.35 0.04
>2 per day 159 (64.1) 67 (55.1) 1 8.42 (6.07-10.78) 1
Tooth flossing unusual 148 (61.2) 75 (64.6) 1.54 0.01 10.56 (7.68-13.44) 1.15 0.35
usual 100 (38.8) 40 (35.4) 1 9.66 (6.49-12.82) 1
Smoking Yes 48 (23.2) 30 (27.0) 2.26 0.01 13.32 (10.81-15.53) 1.43 0.04
No 200 (76.8) 85 (73.0) 1 9.27 (7.31-11.22) 1
Clinical conditions Decayed Teeth Yes 91 (35.4) 62 (52.9) 4.78 <0.001 15.16 (12.09-18.23) 2.02 <0.001
No 157 (64.6) 53 (47.1) 1 7.50 (5.05-9.96) 1
CAL>4mm Yes 82 (43.0) 40 (45.6) 0.59 0.59 10.03(5.72-14.33) 1.21 0.22
No 166 (66.9) 75 (54.4) 1 10.35 (8.78-11.91) 1
Health literacy feel able to collect oral health information Do not agree 106 (34.3) 48 (39.4) 1.73 0.04 13.32 (9.94-16.70) 1.27 0.04
Agree 142 (65.7) 67 (60.6) 1 8.58 (6.09-11.08) 1
feel able to judge oral health information Do not agree 103 (48.0) 56 (57.2) 1.06 <0.001 10.74 (7.71-11.73) 1.01 <0.001
Agree 145 (52.0) 59 (42.8) 1 9.72 (7.12-14.36) 1  
Tooth loss Edentulous 13 (6.6) 7 (56.5) 2.38 0.16 10.63 (5.5-15.7) 1.80 0.02
Lost 13–31 teeth 45 (24.9) 29 (55.3) 3.70 0.001 16.05 (10.5-21.6) 2.71 <0.001
Loss of up to 12 teeth, including 1+ anterior 62 (26.8) 32 (44.0) 2.18 0.03 9.73 (6.3-13.1) 1.65 0.01
Loss of up to 12 posterior teeth, excluding 1 st molars 45 (17.8) 20 (49.1) 1.64 0.21 8.09 (5.5-10.7) 1.37 0.14
Loss of 1–4 1 st molar 12 (4.4) 4 (40.6) 1.02 0.97 7.12 (2.8-11.4) 1.20 0.57
No teeth lost 70 (19.5) 23 (43.2) 1   5.92(4.6-10,2) 1  
  1. Note: The table presents weighted values.
  2. Significance level is p value<0,05.