Table 1 Total study population with the number of participating parents (N = 1,091) and adolescents (N = 873) and describing various characteristics
|  | Parents (n = 1,091) | Adolescents (n = 873) |
|---|---|---|
n (%) | n (%) | |
Sex | ||
 Male | 209 (19.2%) | 405 (46.4%) |
 Female | 882 (80.8%) | 468 (53.6%) |
Adolescent vaccinated against MenACWY | ||
 Yes | 946 (86.7%) | 800 (91.6%) |
 No | 145 (13.3%) | 73 (8.4%) |
Cohort | ||
 2004 | 345 (31.6%) | 313 (35.8%) |
 2005 | 746 (68.4%) | 560 (64.2%) |
Migration background | ||
 Dutch | 968 (88.7%) | 817 (93.6%) |
 Western | 55 (5.0%) | 19 (2.2%) |
 Nonwestern | 67 (6.1%) | 37 (4.2%) |
 Missing | 1 (0.1%) | - |
Education level | ||
 Low | 55 (5.0%) | - |
 Middle | 222 (20.4%) | - |
 High | 814 (74.6%) | - |
Adolescent follows NIP | ||
 Yes, fully | 949 (87.0%) | - |
 Yes, partly | 111 (10.2%) | - |
 No | 24 (2.2%) | - |
 Not sure | 7 (0.6%) | - |
MenACWY vaccination an important topic | ||
 Completely agree | 732 (67.1%) | 155 (17.8%) |
 Agree | 268 (24.6%) | 397 (45.5%) |
 Neutral | 44 (4.0%) | 222 (25.4%) |
 Disagree | 24 (2.2%) | 70 (8.0%) |
 Completely disagree | 23 (2.1%) | 29 (3.3%) |
Read information folder | ||
 Yes | 950 (87.1%) | 520 (59.6%) |
 No | 84 (7.7%) | 254 (29.1%) |
 Do not remember | 57 (5.2%) | 99 (11.3%) |
Searched for additional information | ||
 Yes | 524 (48.0%) | 183 (21.0%) |
 No | 536 (49.1%) | 661 (75.7%) |
 Do not remember | 31 (2.9%) | 29 (3.3%) |
At least one parent spoke to adolescent about choice beforehand | ||
 Yes | 848 (77.7%) | 652 (74.7%) |
 No | 191 (17.5%) | 167 (19.1%) |
 Not sure/Do not remember/not applicable | 52 (4.8%) | 54 (6.2%) |
Number of invites received to get vaccinated | ||
 One | 867 (79.5%) | 593 (67.9%) |
 More than one | 155 (14.2%) | 97 (11.1%) |
 Do not remember | 69 (6.3%) | 183 (21.0%) |