Table 3 Crude and adjusted associations between key variables and completion of birth dose and three EPI doses of hepatitis B vaccine

Knowledge Questions All Correct

Yes

35/50 (70)

0.02

2.6 (1.2–5.6)

0.014

No

105/203 (51.7)

reference

Willing to vaccinate the baby for HBV

Yes

138/248 (55.7)

0.49

1.2 (0.2–7.8)

0.827

No

2/5 (40)

reference

Site

SH

46/53 (86.8)

< 0.001

14.3 (4.8–42.4)

< 0.001

SMRU

94/200 (47)

reference

Age

25–47

81/126 (64.3)

0.004

1.7 (1.0–3.1)

0.059

16–24

59/127 (46.5)

reference

Health care coverage

Insured

135/235 (57.5)

0.02

6.8 (1.4–34.5)

0.020

Uninsured

5/18 (27.8)

reference

Documentation status

Documented

47/68 (69.1)

0.008

–

Undocumented

93/185 (50.3)

–

Length of time at current residence

≥ 6 months

136/236 (57.63

0.006

3.7 (1.0–13.5)

0.045

< 6 months

4/17 (23.53)

reference

Education

Not attend

43/72 (59.7)

0.12

reference

0.324

Elementary school

61/125 (48.8)

1.5 (0.7–3.2)

Secondary school

35/55 (63.6)

2.0 (0.8–4.8)

HBV status

Positive

10/14 (71.4)

0.21

1.4 (0.4–5.2)

0.644

Negative

129/237 (54.4)

reference

Ethnicity

Burman

44/94 (46.8)

0.001

–

Shan

46/58 (79.3)

–

Karen

45/90 (50)

–

Other

5/11 (45.5)

–