Table 2.

Comparison of changes in risk behaviour and biological risk factors between intervention and control patients at 4 months

Variable	Baseline mean (No)	Change from baseline (95% CI)	% change	Difference in change (95% CI)
Cigarettes per day
Intervention	20.2 (59)	6.7 (4.4 to 8.9)	33.2	4.5 (2.1 to 7.0)
Control	16.3 (184)	2.2 (0.8 to 3.5)	13.5
Fat score*
Intervention	30.8 (186)	8.0 (5.1 to 10.8)	26.0	4.8 (1.6 to 8.0)
Control	27.9 (386)	3.2 (1.3 to 5.1)	11.5
Exercise (No of sessions)†
Intervention	5.29 (199)	7.6 (5.7 to 9.3)	143	3.7 (1.3 to 6.2)
Control	4.84 (420)	3.8 (1.9 to 5.8)	79.4
Body mass index
Intervention	28.6 (204)	0.38 (0.1 to 0.7)	1.3	0.15 (−0.18 to 0.48)
Control	28.2 (421)	0.23 (0.01 to 0.4)	0.8
Body weight (kg)
Intervention	80.9 (204)	1.0 (0.2 to 1.8)	1.3	0.4 (−0.5 to 1.3)
Control	80.2 (422)	0.7 (0.5 to 1.2)	0.8
Systolic blood pressure (mm Hg)‡
Intervention	135.5 (200)	3.3 (1.8 to 4.7)	2.4	2.4 (0.1 to 4.8)
Control	128.7 (409)	0.9 (−1.2 to 3.0)	0.7
Diastolic blood pressure (mm Hg)‡
Intervention	82.8 (200)	1.9 (0.6 to 3.3)	2.4	1.1 (−0.6 to 2.8)
Control	79.7 (408)	0.8 (−0.4 to 2.1)	1.1
Smoking prevalence
Intervention	28.9 (204)§	18.6 (0.5 to 31.9)¶		7.4 (−0.6 to 20.1)**
Control	44.3 (422)§	11.2 (0.5 to 17.1)¶

Positive scores indicate favourable changes—for example, reduced body mass index, increased exercise. 

^*Dietary instrument for nutritional education.²² 

^†Episodes of vigorous or moderate activity in past 4 weeks. 

^‡Patients taking antihypertensive drugs excluded. 

^§Baseline prevalence. 

^¶Smoking quit rate. 

^**Difference in quit rate.