Table 1 Description of the two study groups
Prospective study group | Retrospective study group | Significance (p-value for differences between the study arms) | |||
|---|---|---|---|---|---|
Median household size (interquartile range (IQR)) | 4 (3; 4) | 4 (3; 5) | p = 0.08 | ||
N | % | N | % | ||
Household level | 77 | 100.0 | 100 | 100.0 | |
Highest education of the parents | |||||
Professional or university training | 59 | 76.6 | 78 | 78.0 | p = 0.47 |
Max. intermediate level of vocational or secondary education | 17 | 22.1 | 17 | 17.0 | |
Missing information | 1 | 1.3 | 5 | 5.0 | |
Household members level | 282 | 100.0 | 404 | 100.0 | |
Age | |||||
0–3 years | 63 | 22.3 | 84 | 20.8 | p = 0.48 |
4–6 years | 49 | 17.4 | 57 | 14.1 | |
7–15 years | 16 | 5.7 | 28 | 6.9 | |
16 years and older | 150 | 53.2 | 234 | 57.9 | |
Missing information | 4 | 1.4 | 1 | 0.3 | |
Sex | |||||
Female | 146 | 51.8 | 197 | 48.8 | p = 0.79 |
Male | 134 | 47.5 | 206 | 51.0 | |
Missing information | 2 | 0.7 | 1 | 0.3 | |