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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

From: Heterogeneity in coverage for measles and varicella vaccination in toddlers – analysis of factors influencing parental acceptance

  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
  1. 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
  2. bthe age at measles infection of the other child is unknown
  3. 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
  4. ***: significant at 0.1% level, **: significant at 1% level, *: significant at 5% level