Table 2.

The variables specified in the full titre model and the alternative versions of the titre and threshold models.

Models	A	B	C	D	E	F
Basic reproductive number	✓	✓	✓	✓	✓	✓
Age-dependent Ab boosting	✓		✓	✓
Age-dependent Ab protection	✓	✓		✓
Relative infectivity of children	✓	✓	✓		✓
Age-independent Ab boosting		✓
Age-independent Ab protection			✓
ΔDICa	0	7	−2.6	38.5	11.5	15.4

^aNote that ΔDIC was calculated as the DIC of the alternative model minus the DIC of the full titre model (719.7).