Table 1. SPoRT index of health behaviour and stress.

Risk Factor*	Description	Male index	Female index
Smoking
Heavy smoker	Daily current smoker (≥1 pack/day)	3	4
Light smoker	Daily current smoker (<1 pack/day)	2	3
Former smoker	Former daily smoker	1	1
Non-smoker	Former occasional smoker or never smoker	0	0
Alcohol
Heavy drinker	>21 (men) or >14 (women) drinks/week in previous month or weekly bingeing behaviour †	1	2
Moderate drinker	5 to 21 (men) or 3 to 14 (women) drinks/week	0	0
Light drinker	0 to 4 (men) or 0 to 2 (women) drinks/week	0	1
Occasional drinker	<1 drink/month	0	1
Current non-drinker	No alcohol consumption in the last 12 months	1	2
Physical activity
Inactive	0 to <1.5 METs/day ‡	2	1
Moderately active	1.5 to <3 METs/day	1	0
Active	≥3 METs/day	0	0
Diet
Poor diet	<7 weekly fruit and vegetable serving	2	2
Fair diet	7 to <14 weekly fruit and vegetable serving	1	1
Adequate diet	≥ 14 weekly fruit and vegetable serving	0	0
Stress
High stress	Self-perceived stress: ‘quite a bit’ or ‘extremely’	1	2
Low stress	Self-perceived stress: ‘not at all’, ‘not very’, or ‘a bit’	0	0
Maximum score		9	11

Each point on the SPoRT Behaviour Score increases stroke risk by 12% for males or 14% for females (see full model on Table 2). The maximum score for males equals a 180% (9 x 12%) risk difference compared to the lowest score; 340% (11 x 14%) for females.

*Reference group is in italics.

^† Bingeing was defined as ≥5 drinks/day on any occasion.

^‡METs are Metabolic Equivalent of Task (kcal/kg/day). For example, the “inactive” physical activity is equal to walking for exercise less than 30 min per day (3 METS/hr).