Table 3.

Associated factors to incomplete expanded immunization coverage by age 12 month. 2015 Pelotas Birth Cohort

	Incomplete expanded immunisationa
	Unadjusted		Adjusted
	%	95% IC	%	95% IC
Maternal education (years)	0.001		0.024
0 to 4	1.05	0.90; 1.22	1.14	0.95; 1.36
5 to 8	0.98	0.88; 1.09	1.09	0.95; 1.25
9 to 11	0.82	0.74; 0.92	0.92	0.82; 1.04
12 or more	1 (ref)	–	1 (ref)	–
Family income (quintiles)	< 0.001		< 0.001
Q1 (poorest)	1 (ref)	–	1 (ref)	–
Q2	0.86	0.75; 0.98	0.88	0.77; 1.00
Q3	0.78	0.68; 0.90	0.82	0.71; 0.95
Q4	0.80	0.70; 0.93	0.85	0.73; 0.99
Q5 (richest)	1.10	0.97; 1.24	1.15	1.01; 1.34
Maternal age (years)	0.247		0.230
<  20	1 (ref)	–	1 (ref)	–
20–35	1.06	0.94; 1.21	1.11	0.97; 1.28
>  35	1.16	0.98; 1.37	1.16	0.97; 1.39
Maternal skin color	0.88		0.825
White	1 (ref)	–	1 (ref)	–
Brown	1.03	0.91; 1.17	1.04	0.91; 1.18
Black	1.02	0.90; 1.15	1.02	0.90; 1.16
Parity	< 0.001		< 0.001
1 child	1 (ref)	–	1 (ref)	–
2 children	1.21	1.09; 1.34	1.23	1.11; 1.37
3 children or more	1.52	1.36; 1.68	1.52	1.35; 1.71
Number of prenatal consultations	< 0.001		< 0.001
0 to 5	1.42	1.27; 1.58	1.39	1.24; 1.56
6 or more	1 (ref)	–	1 (ref)	–
Tdapbvaccine during pregnancy	< 0.001		< 0.001
No	1.22	1.12; 1.33	1.18	1.07; 1.29
Yes	1 (ref)	–	1 (ref)	–
Breastfedding status at 12 months	< 0.001		< 0.001
No	1.21	1.09; 1.33	1.24	1.12; 1.37
Yes	1 (ref)	–	1 (ref)	–
Use of public health care services	< 0.001		< 0.001
No	1.25	1.10; 1.41	1.22	1.06; 1.39
Yes	1 (ref)	–		–

^aIncomplete immunization defined as not have reached the complete scheduled vaccine doses of national immunization program for the first year of life

^bTdap: tetanus toxoid, reduced difteria toxoid and acellular pertussis