Table 3. Multivariate logistic regression analysis for loss of primary teeth.

Variable	OR 95% CI	P value
Number of decayed teeth	1.11 (1.03–1.20)	0.006
Number of filled teeth	1.23 (1.13–1.34)	< 0.001
Oral Hygiene (S-OHI)	3.24 (1.65–6.39)	0.001
Toothbrushing frequency
At least 1/day	1*
Less than 1/day	1.60 (1.18–2.15)	0.002
Sugared soft drink consumption
≤1 times/day	1*
>1 times/day	1.89 (1.13–3.16)	0.015
Type of dental care in the past year
Without dental care	1*
Curative care	2.83 (2.30–3.49)	< 0.001
Preventive care	1.93 (1.24–3.00)	0.004

^*Reference category.

Note: Model adjusted for the variables in the table as well as by age and sex.

95% CI estimated with robust standard errors (cluster school).

Goodness-of-fit test: Pearson x² (688) = 687.31, p=0.5002.

Link test (specification error): predictor=0.002; predictor² = 0.117.