Single variable OR (95% CI) | Multivariable OR (95% CI) | |
Birth cohort | ||
Born between 1987/1988 and 1993/1994 | 1.11 (0.87 to 1.40) | |
Born between 1994/1995 and 1997/1998 (REF) | 1.00 | |
Sex | ||
Male (REF) | 1.00 | 1.00 |
Female | 0.85** (0.77 to 0.94) | 0.87* (0.78 to 0.97) |
Ethnicity | ||
White (REF) | 1.00 | 1.00 |
Non-white | 0.63* (0.40 to 1.00) | 0.68 (0.46 to 1.01) |
Missing | 0.29*** (0.17 to 0.51) | 0.31*** (0.18 to 0.52) |
Area of residence deprivation | ||
Non-deprived area (REF) | 1.00 | 1.00 |
Deprived area | 0.75*** (0.65 to 0.85) | 0.84* (0.72 to 0.98) |
Complexity | ||
Severe (REF) | 1.00 | 1.00 |
Moderate | 0.33*** (0.28 to 0.38) | 0.30*** (0.26 to 0.35) |
Model of care | ||
Vertical (same site) model (REF) | 1.00 | 1.00 |
Horizontal (not same site) model | 0.45** (0.26 to 0.75) | 0.44*** (0.27 to 0.71) |
The sample consists of 4036 moderate and severe complexity patients born before 1998/1999 (data covering all of their ages between 16 and 20) and alive at age 20 (2 patients were excluded to allow clustering SEs by last centre as child; see online supplemental material): 3425 were transferred to adult services and 611 were not. The multivariable model includes only factors that were significant in the single variable analysis.
***P≤0.001, **P<0.01, *P<0.05.
ACHD, adult congenital heart disease; REF, reference.