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. 2016 Jun 1;11(6):e0156231. doi: 10.1371/journal.pone.0156231

Table 3. Multilevel logistic regression of determinants in the presence of dental calculus, shallow periodontal pockets and deep periodontal pockets.

SB Brasil, 2010.

Variable Calculus Shallow periodontal pocket (3 mm- 5 mm) Deep periodontal pocket (≥ 6 mm)
OR CI95% p value OR CI95% p value OR CI95% p value
Contextual
Gini Index a
    Middle tertile 0.81 0.59–1.13 0.22 1.02 0.76–1.39 0.85 1.02 0.68–1.55 0.89
    Upper tertile 0.93 0.66–1.33 0.71 0.74 0.53–1.03 0.07 0.64 0.41–1.00 0.06
MHDI b 1.03 0.70–1.50 0.48 0.86 0.59–1.24 0.42 1.09 0.64–1.88 0.86
SB/FHS c
25%-50% 0.87 0.65–1.14 0.32 0.76 0.58–0.98 0.03 0.62 0.44–0.89 0.01
>50% 0.95 0.69–1.32 0.80 0.68 0.50–0.93 0.01 0.58 0.37–0.92 0.02
Individual
Sex d 0.86 0.75–0.99 <0.001 0.69 0.60–0.80 <0.001 0.58 0.45–0.74 <0.001
Skin color e 1.32 1.14–1.54 <0.001 1.27 1.09–1.49 0.002 1.10 0.84–1.43 0.46
Family income f 0.74 0.63–0.85 0.24 0.89 0.76–1.05 0.17 0.91 0.69–1.20 0.54
Education 0.77 0.66–0.89 <0.001 0.86 0.73–1.00 0.06 0.74 0.57–0.97 0.03

a lower tertile = 1, middle tertile = 2 and upper tertile = 3.

b ≤ 0.7 = 1; >0.7 = 2.

c < 25% = 0; 25%-50% = 1; >50% = 2.

d male = 0; female = 1.

e white = 0; nonwhite = 1.

f ≤ R$ 1,500 = 0; > R$ 1,500 = 1.

Missing data: income (159) and education (212).

Sextant excluded or not evaluated: sex 17 (2,514); sex 11 (2,297); sex 27 (2,559); sex 37 (2,211); sex 31 (632); sex 47 (2,201).