Table 4 Adjusted logistic regression model examining the additive effect of having multiple poor health behaviours on poor self-rated health status.

Absence of health risk behaviours

Ref

1 Health risk behaviour

1.27 (0.94–1.73)

0.13

2 Health risk behaviours

1.57 (1.13–2.18)

0.01

3 Health risk behaviours

2.66 (1.80–3.92)

<0.001

4 or 5 Health risk behaviours

5.18 (2.91–9.24)

<0.001