Associated variables Decayed, missing and filled teeth
Coef. 95% CI P-value
Constant 10.5 7.02; 13.98 < 0.001b
Teeth affected (Primary)
Permanent -2.38 -7.56; 2.8 0.367
Age (6), years
12 3.14 -2; 8.28 0.231
15 3.82 -1.37; 9 0.149
35 - 44 10.78 5.56; 15.99 < 0.001b
Governorate (Beirut)
North -2.8 -4.76; -0.83 0.005b
South -2.22 -4.33; -0.12 0.038a
Mount Lebanon -2.31 -4.26; -0.35 0.021a
Bekaa -2.12 -4.18; -0.06 0.044a
Arrangement (Full time)
Part time -1.36 -2.89; 0.17 0.081
Education of caretaker (Secondary or less)
College/University -1.14 -2.3; 0.21 0.054
Degree of disability (Mild)
Moderate 0.78 -0.08; 1.65 0.077
Severe 1.41 -1.12; 3.96 0.274
Use of medications (No)
Yes -0.86 -1.87; 0.16 0.098
Frequency of brushing (No use)
Rarely -5.1 -6.94; -3.81 < 0.001b
1/day with help -5.75 -7.70; -3.81 < 0.001b
1/day without help -6.27 -7.89; -4.64 < 0.001b
≥ 2/day with help -6.32 -8.21; -4.43 < 0.001b
≥ 2/day without help -6.34 -7.97; -4.64 < 0.001b
Type of meals consumed (Home-cooked)
Fast food and pastries 2.38 -0.16; 4.93 0.066
Combination of both 0.03 -0.91; 0.98 0.944
Sweets between meals (No consumption)
Rarely 0.84 -2.13; 3.81 0.58
1/day 0.6 -0.58; 1.78 0.319
2/day 1.41 0.23; 2.6 0.019a
> 2/day 3.13 1.93; 4.34 < 0.001b
F (24, 627) 22.46
Prob > F < 0.001b
R-squared 0.4623
Adjusted R2 0.4417
RMSE 4.4817

aStatistically significant at P ≤ 0.05 (Multivariate analysis).
bStatistically significant at P < 0.01 (Multivariate analysis).
Coef. = regression coefficient; CI = confidence interval; F = the model’s degrees of freedom and residual degrees of freedom; RMSE = root-mean-square-error.
Base refers to the base outcome all other categories are compared to.