Table 2.

Varicella and measles history and vaccination status of children in Munich and Würzburg; data from the three survey years pooled for each region

	Munich (N tot. = 933)		Würzburg (N tot. = 1065)
	N	n (%), or median (IQR)	N	n (%), or median (IQR)	p-valuea
Varicella history (all children)
History of any previous varicella infection; n (%)	933	64 (6.9)	1065	53 (5.0)	0.085
- If yes, age at varicella infection (mo.); median (IQR)	64	14.5 (6.5–20.8)	53	20.0 (10.5–31.5)	0.010*
Varicella vaccination status (children susceptible for varicella at 11 months of age, first dose)
Vaccinated against varicella at time of survey; n (%)	885	555 (62.7)	1019	802 (78.7)	<0.001***
- If yes, age at varicella vaccination (mo.); median (IQR)	555	12.5 (11.8–13.9)	802	12.5 (11.7–14.3)	0.891
- If yes, vaccine type; n (%)	549		800		0.090
monovalent		103 (18.8)		182 (22.8)
tetravalent		446 (81.2)		618 (77.3)
Varicella vaccination recommended by physician; n (%)	868	578 (66.6)	1009	820 (81.3)	<0.001***
Measles history (all children)c
History of any previous measles infection; n (%)	932	2 (0.2)	1063	2 (0.2)	0.560
- If yes, age at measles infection; per case (mo.)	2	12; 21	2	36b	–
Measles vaccination status (all children, first dose)c
Vaccinated against measles at time of survey; n (%)	931	833 (89.5)	1065	994 (93.3)	0.002**
- If yes, age at measles vaccination (mo.); median (IQR)	820	12.0 (11.0–14.0)	985	12.0 (11.0–14.0)	0.088

^aPearson’s Chi² test (Fisher’s exact test in cases with expected number < 5 in more than 20% of cells) and Mann-Whitney-U-test, respectively

^bthe age at measles infection of the other child is unknown

^cDue to the very low numbers of children with preceding measles infection, measles vaccination rates were reported for all children. For single children, data on measles history, measles vaccination status or age at measles vaccination was not available

***: significant at 0.1% level, **: significant at 1% level, *: significant at 5% level