# Table 2

Bivariate and multivariate analyses, Poisson regression; adults aged 35 to 44 years (N = 1138)
Variables Severity of caries DMFT Prevalence ratio PR (95%CI)*
Demographic profile and health-related behavior (individual level) DMFT <14 N ( %) DMFT ≥ 14 N ( %) Bivariate p Multivariate p
Gender
Male 136 (35.3) 249 (67.7) 1
Female 214 (28.4) 539 (71.6) 1.11 (1.00-1.24) p = 0.049 -
Age
35-39 years 207 (36.4) 362 (63.6) 1 1
40-44 years 143 (25.1) 426 (74.9) 1.15 (1.04-1.26) p = 0.005 1.15 (1.04-1.26) p = 0.007
Marital status§
Others 124 (34.3) 238 (65.7) 1
Married/stable union 222 (28.9) 547 (71.1) 1.05 (0.94-1.17) p = 0.386 -
Food preference§
Salty 252 (30.7) 570 (69.3) 1
Sweet 55 (29.1) 134 (70.9) 1.02 (0.89-1.18) p = 0.746 -
Use of dental floss§
No 91 (30.6) 206 (69.4) 1
Yes 242 (30.4) 554 (69.6) 1.02 (0.92-1.14) p = 0.677 -
Use of toothpaste§
No 10 (30.3) 23 (69.7) 1
Yes 278 (29.8) 655 (70.2) 1.19 (0.74-1.90) p = 0.472 -
Regular visits to dentist§
No 238 (33.4) 474 (66.6) 1
Yes 103 (25.8) 296 (74.2) 1.15 (1.05-1.27) p = 0.004 1.18 (1.07-1.30) p = 0.001
Psychological reactions (individual level) DMFT <14 N (%) DMFT ≥ 14 N (%) PR(95%CI)* Bivariate p PR(95%CI)* Multivariate p
Has negative feelings§
Yes 82 (32.9) 167 (67.1) 1
No 249 (29.6) 593 (70.4) 1.08 (0.95-1.23) p = 0.234 -
Considers self happy§
Yes 266 (31.6) 577 (68.4) 1
No 80 (28.0) 206 (72.0) 1.00 (0.89-1.12) p = 0.995 -
Capable of coping with stress§
No 36 (32.7) 74 (67.3) 1
Yes 306 (30.3) 705 (69.7) 1.07 (0.89-1.29) p = 0.455 -
Socioeconomic status and use of healthcare services (social structure) DMFT < 14 N (%) DMFT ≥ 14 N (%) PR(95%CI)* Bivariate p PR(95%CI)* Multivariate p
Yes 138 (31.2) 304 (68.8) 1
No 208 (30.3) 479 (69.7) 1.04 (0.94-1.15) p = 0.482 -
Services most used§
Public 105 (31.6) 227 (68.4) 1
Others 235 (30.0) 548 (70.0) 1.01 (0.91-1.12) p = 0.854 -
Problem obtaining appointment
No 183 (29.9) 429 (70.1) 1
Yes 89 (28.8) 220 (71.2) 1.02 (0.91-1.13) p = 0.759 -
Monthly household income§
> US\$600 191 (34.6) 361 (65.4) 1 1
≤ US\$600 159 (27.1) 427 (72.9) 1.09 (0.99-1.20) p = 0.087 1.11 (1.01-1.23) p = 0.037
Schooling*
University 34 (36.2) 60 (63.8) 1
Non-university 316 (30.4) 723 (69.6) 1 1.17 (0.95-1.46) p = 0.147 -
Social capital (social context) DMFT <14 N ( %) DMFT ≥ 14 N ( %) PR(95%CI)* Bivariate p PR(95%CI)* Multivariate p
Participation in groups
No 274 (31.6) 592 (68.4) 1
Yes 76 (27.9) 196 (72.1) 1.08 (0.97-1.20) p = 0.143 -
Has persons willing to assist financially§
Yes 216 (31.6) 468 (68.4) 1
No 131 (29.4) 315 (70.6) 1.01 (0.92-1.12) p = 0.817 -
Security at home§
Yes 135 (34.5) 256 (65.5) 1
No 213 (28.9) 525 (71.1) 1.07 (0.96-1.18) p = 0.213 -
Community petitioned authorities for neighborhood benefits§
Yes 165 (33.4) 329 (66.6) 1 1
No 175 (29.0) 428 (71.0) 1.16 (1.05-1.28) p = 0.004 1.16 (1.05-1.28) p = 0.003
Capable of making decisions
Yes 273 (32.3) 572 (67.7) 1 1
No 75 (26.0) 214 (74.0) 1.12 (1.01-1.24) p = 0.028 1.12 (1.01-1.24) p = 0.012

*PR- prevalence ratio; CI- confidence interval; values adjusted for design effect.

§presence of missing data, adjusted percentage.

Costa et al.

Costa et al. BMC Oral Health 2012 12:25   doi:10.1186/1472-6831-12-25