Table 2 Baseline characteristics of clusters and parents by arm
From: Randomised cluster trial to support informed parental decision-making for the MMR vaccine
Characteristics | Intervention arm | Control arm |
|---|---|---|
Primary healthcare centres, n | 3 | 3 |
Childcare organisations, n | 3 | 3 |
Mean healthcare centre parent list size | 216 | 210 |
Mean childcare organisation parent list size | 19 | 30 |
Mean Low Income Scheme Index scorea | 10 | 11 |
Parents, n | 71 | 71 |
Mean age ± SD, yrs | 34.07 ± 5.43 | 34.06 ± 5.52 |
Ethnicity, n (%) | Â | Â |
White British | 68 (95.8%) | 68 (95.8%) |
Other | 3 ( 4.2%) | 3 ( 4.2%) |
Marital status, n (%) | Â | Â |
Single or living with partner | 27 (38.0%) | 13 (18.3%) |
Married or re-married | 40 (56.4%) | 57 (80.2%) |
Separated/Divorced/Widowed | 4 .(5.6%) | 1 (1.5%) |
Relationship to eligible child, n (%) | Â | Â |
Mother | 67 (94.4%) | 67 (94.4%) |
Father | 4 (5.6%) | 4 (5.6%) |
Education | Â | Â |
Left school at 16 years | 24 (33.8%) | 25 (35.2%) |
Left school at 18 years | 10 (14.1%) | 10 (14.1%) |
Achieved Degree or higher | 37 (52.1%) | 36 (50.7%) |
Have older child | Â | Â |
Yes | 36 (50.7%) | 36 (50.7%) |
No | 35 (49.3%) | 35 (49.3%) |
First (youngest) child eligible, n (%) First dose MMR decision | 23 (32.4%) | 44 (62.0%) |
Second dose MMR decision | 48 (67.6%) | 27 (38.0%) |
Mean age ± SD of first (youngest) child eligible, months | 25.73 ± 14.66 | 19.77 ± 11.69 |
Second youngest child eligible, n (%) | Â | Â |
First dose MMR decision | 1 ( 4%) | 0 (0.00%) |
Second dose MMR decision | 24 (96%) | 22 (100.0%) |
Mean age ± SD of second youngest child eligible, months | 50.56 ± 17.13 | 49.32 ± 21.41 |