Table 4.

Bivariate logistic regression analyses to assess factors associated with likelihood of varicella and measles vaccination; data from all three survey years pooled for each region

Bivariate logistic regression analyses (comparing children with and without varicella vaccination or measles vaccination, respectivelya)	Varicella Vaccination		Measles Vaccination
	Munich (2009–2011) OR (95% CI)	Würzburg (2009–2011) OR (95% CI)	Munich (2009–2011) OR (95% CI)	Würzburg (2009–2011) OR (95% CI)
	Nb = 885	Nb = 1019	N = 931	N = 1065
Age of mother >35 years vs. ≤ 35 years	0.65 (0.50–0.86)f	0.82 (0.61–1.12)	0.90 (0.59–1.38)	0.99 (0.60–1.62)
Gender of child female vs. male	1.30 (0.99–1.71)	1.14 (0.84–1.54)	0.94 (0.62–1.44)	1.17 (0.72–1.90)
Physician recommended varicella vaccination vs. no recommendation	18.79 (13.16–26.84)e	35.87 (23.62–54.47)e	–	–
Survey year
2010 vs. 2009 (reference)	1.86 (1.34–2.60)e	1.61 (1.13–2.31)f	1.13 (0.69–1.86)	1.27 (0.73–2.21)
2011 vs. 2009 (reference)	2.03 (1.54–2.85)e	1.86 (1.28–2.71)f	1.37 (0.82–2.31)	1.89 (1.01–3.54)g
Attendance of childcare unit >10 h/week vs. no or less frequent attendance	1.50 (1.13–2.00)f	1.69 (1.21–2.35)f	2.00 (1.31–3.04)f	1.84 (1.10–3.06)g
Highest possible school educationc at least one parent	0.75 (0.55–1.01)	0.79 (0.58–1.08)	0.85 (0.53–1.35)	0.54 (0.32–0.91)f
Inhabitant of city vs. administrative district	0.73 (0.53–1.03)	0.96 (0.71–1.30)	0.76 (0.45–1.29)	1.18 (0.72–1.93)
Family size ≥4 persons vs. < 4 persons	0.85 (0.64–1.11)	0.80 (0.58–1.12)	1.04 (0.68–1.57)	0.83 (0.48–1.42)
Private health insurance vs. statutory health insurance	0.85 (0.63–1.42)	1.26 (0.88–1.81)	0.72 (0.47–1.12)	0.78 (0.46–1.33)

^a: all vaccination data refers to first dose

^b: only children susceptible at the age of 11 months

^c: University entrance diploma at end of grammar school (‘Abitur’)

^e: significant at 0.1% level

^f: significant at 1% level

^g: significant at 5% level