Supplementary Table S1:
Demographic characteristics (total vaccinated cohort) and 10-year varicella person-year rate (per-protocol efficacy cohort) of study participants per country in the Active Control group
| Characteristic |
Czech Republic |
Greece |
Italy |
Lithuania |
Norway |
Poland |
Romania |
Russia |
Slovakia |
Sweden |
|
| Age in months, mean ± SD | 15.3 ± 3.1 | 15.1 ± 2.8 | 13.9 ± 2.1 | 14.4 ± 2.2 | 14.1 ± 1.0 | 12.9 ± 1.2 | 15.3 ± 2.9 | 12.6 ± 1.2 | 15.4 ± 2.4 | 15.5 ± 2.0 | |
| Gender, % female | 48.1 | 48.8 | 57.5 | 46.2 | 55.2 | 53.3 | 42.6 | 48.3 | 46.4 | 37.2 | |
|
Ethnicity, n (%)European Arabic or North African Other |
184 (99.5) |
41 (95.3) |
38 (95.0) |
93 (100.0) |
27 (93.1) |
135 (100.0) |
46 (97.9) |
143 (100.0) |
68 (98.6) |
43 (100.0) |
|
| 0 (0.0) | 2 (4.7) | 1 (2.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | ||
| 1 (0.5) | 0 (0.0) | 1 (2.5) | 0 (0.0) | 2 (6.9) | 0 (0.0) | 1 (2.1) | 0 (0.0) | 1 (1.4) | 0 (0.0) | ||
| Care type, n (%)At least one sibling at homeAttending a day care centerAttending a childminderAt least once a week contact | 53 (28.6) |
12 (27.9) |
7 (17.5) |
10 (10.8) |
10 (34.5) |
35 (25.9) |
6 (12.8) |
32 (22.4) |
31 (44.9) |
13 (30.2) |
|
| 3 (1.6) | 1 (2.3) | 9 (22.5) | 26 (28.0) | 13 (44.8) | 7 (5.2) | 0 (0.0) | 125 (87.4) | 1 (1.4) | 24 (55.8) | ||
| 13 (7.0) | 9 (20.9) | 7 (17.5) | 1 (1.1) | 8 (27.6) | 4 (3.0) | 0 (0.0) | 12 (8.4) | 4 (5.8) | 4 (9.3) | ||
| 176 (95.1) | 40 (93.0) | 35 (87.5) | 78 (83.9) | 19 (65.5) | 127 (94.1) | 47 (100.0) | 131 (91.6) | 67 (97.1) | 32 (74.4) | ||
| 10-year person-year rate of varicella, n/T (95% CI)* | 0.20 (0.17─0.23) | 0.00 (undefined) | 0.08 (0.04─0.15) | 0.05 (0.03─0.07) | 0.16 (0.10─0.26) | 0.06 (0.04─0.08) | 0.00 (undefined) | 0.07 (0.05─0.10) | 0.15 (0.11─0.19) | 0.21 (0.15─0.30) | |
SD, standard deviation; n (%), number (percentage) of participants in a given category; n/T (95% CI), person-year rate (95% confidence interval). *data for Czech Republic, Lithuania, Poland, Romania and Slovakia have been published31