Increase in dental caries and change in the socioeconomic profile of families in a child cohort of the primary health care in Northeast Brazil

Table 3 Final model of risk factors related to the increase in dental caries

Variables/Categories	^aRR^crude RR and 95% CI	P-value^c	^bRR^adjusted RR and 95% CI	P-value^d
Sex
Female	1	0.096	1	0.099
Male	1.18 [1.01–1.43]		1.18 [0.97–1.43]
Mother’s education level
< 8 years	1.42 [0.98–2.07]	0.063	1.55 [1.05–2.01]	0.010^d
8 to 10 years	1.25 [0.96–1.62]	0.100	1.28 [1.00–1.65]	0.052^d
11 years or more	1.00	–	1
Mother’s occupation
Specialized	1		#	#
Semi-specialized	1.68 [0.52–5.41]	0.381
Non-specialized	1.85 [0.59–5.78]	0.289
Unemployed	1.83 [0.59–5.77]	0.297
Consumption of sweets between meals
Never	1		1
Sometimes	1.17 [0.82–1.67]	0.400	1.12 [0.79–1.58]	0.527
Daily	1.60 [1.12–2.27]	0.009	1.53 [1.09–2.14]	0.014^d
Frequency of brushing
Never/Sometimes	1.13 [0.86–1.48]	0.376	#	#
Daily	1
Type of school
Public	1.51 [1.19–1.92]	0.001	1.49 [1.18–1.89]	0.013^d
Private	1		1
Use of private dental services
Yes	0.69 [0.54–0.89]	0.004	0.68 [0.54–0.87]	0.002^d
No	1

^aRR^crude crude relative risk
^bRR^adjusted adjusted relative risk
^c,dThe statistical significance (p ≤ 0.05) of the multivariate negative binomial regression model

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