Table 3.
Odds ratios with 99% confidence intervals for cohort attrition.
| Cohort attrition | |||||
|---|---|---|---|---|---|
| No | Yes | ORa (99% CI) | |||
| n | % | n | % | ||
| Time | |||||
| First follow-up (T1) | 10,709 | 68.6 | 4,909 | 31.4 | ref. |
| Second follow-up (T3) | 4,852 | 47.0 | 5,462 | 53.0 | 2.62 (2.32–2.96) |
| Sex of childb | |||||
| Male | 7,883 | 60.1 | 5,244 | 39.9 | ref. |
| Female | 7,678 | 60.0 | 5,127 | 40.0 | 0.99 (0.93–1.07) |
| Age child (years)c | 1.05 (1.02–1.07) | ||||
| Weight status childc | |||||
| Normal weight | 12,418 | 60.9 | 7,978 | 39.1 | ref. |
| Overweight | 2,059 | 56.5 | 1,588 | 43.5 | 1.17 (1.05–1.29) |
| Obese | 1,084 | 57.4 | 805 | 42.6 | 1.18 (1.03–1.36) |
| Compliance score of childc | 0.84 (0.81–0.87) | ||||
| Compliance score parent(s)c | 0.93 (0.88–0.98) | ||||
| Mother's age (years)c | 0.98 (0.97–0.99) | ||||
| Weight status parentsc | |||||
| No parent overweight | 4,010 | 62.7 | 2,388 | 37.3 | ref. |
| At least one parent overweight | 10,074 | 60.2 | 6,660 | 39.8 | 1.05 (0.96–1.14) |
| Missing | 1,477 | 52.8 | 1,323 | 47.2 | 1.23 (1.08–1.40) |
| Migration backgroundb | |||||
| No | 12,961 | 60.6 | 8,427 | 39.4 | ref. |
| Partly | 1,395 | 61.6 | 871 | 38.4 | 1.13 (1.00–1.28) |
| Full | 905 | 53.8 | 778 | 46.2 | 1.41 (1.21–1.63) |
| Missing | 300 | 50.4 | 295 | 49.6 | 1.35 (0.96–1.91) |
| Educational levelb | |||||
| Low education | 7,965 | 63.2 | 4,639 | 36.8 | 1.49 (1.27–1.74) |
| Medium education | 6,656 | 57.9 | 4,837 | 42.1 | 1.19 (1.10–1.29) |
| High education | 912 | 53.4 | 796 | 46.6 | ref. |
| Missing | 28 | 22.0 | 99 | 78.0 | 1.12 (0.77–1.62) |
| Number of adults in householdc | |||||
| One | 1,122 | 54.2 | 949 | 45.8 | ref. |
| Two | 11,401 | 61.5 | 7,149 | 38.5 | 0.89 (0.78–1.02) |
| Three | 1,109 | 59.5 | 755 | 40.5 | 0.98 (0.82–1.18) |
| Four or more | 414 | 57.3 | 308 | 42.7 | 1.02 (0.80–1.30) |
| Missing | 1,515 | 55.6 | 1,210 | 44.4 | 1.02 (0.72–1.44) |
| Siblings aged < 18 yearsc | |||||
| Yes | 10,897 | 61.6 | 6,796 | 38.4 | 0.90 (0.83–0.99) |
| No | 3,334 | 57.3 | 2,480 | 42.7 | ref. |
| Missing | 1,330 | 54.8 | 1,095 | 45.2 | 0.94 (0.67–1.34) |
| Regionb | |||||
| Intervention | 8,072 | 60.3 | 5,322 | 39.7 | ref. |
| Control | 7,489 | 59.7 | 5,049 | 40.3 | 1.05 (0.98–1.13) |
| Country (third-level)b | |||||
| Spain | 1,622 | 61.4 | 1,020 | 38.6 | |
| Hungary | 1,622 | 46.5 | 1,868 | 53.5 | |
| Germany | 1,808 | 57.2 | 1,352 | 42.8 | |
| Cyprus | 2,455 | 66.2 | 1,252 | 33.8 | |
| Estonia | 2,009 | 68.4 | 927 | 31.6 | |
| Belgium | 1,480 | 48.1 | 1,597 | 51.9 | |
| Italy | 2,414 | 63.8 | 1,368 | 36.2 | |
| Sweden | 2,151 | 68.5 | 987 | 31.5 | |
| N | 15,561 | 60.0 | 10,371 | 40.0 | |
OR, odds ratio; CI, confidence interval; ref., reference category.
a
Adjusted for country.
b
Time invariant variable using information from baseline (T0).
c
Time variant variable using information from baseline (T0) and first follow-up (T1).