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. 2008 Mar;24(3):199–204. doi: 10.1016/s0828-282x(08)70584-1

TABLE 2.

Proportion of study population with lifestyle risk factors before and after diagnosis of hypertension

Presence of lifestyle risk factor
Presence of lifestyle risk factor
Before, n (%) After, % ARR, % RRR, % P Before, n (%) After, % ARR, % RRR, % P
Overall
Smoking 346 (27.0) 22.1 4.9 18.2 <0.001*
Excessive alcohol use 77 (7.9) 8.6 –0.7 –8.9 0.38
Physical inactivity 765 (60.9) 56.1 4.8 7.9 <0.01*
BMI ≥25 kg/m2 830 (66.0) 68.2 –2.2 –3.3 0.04*
BMI ≥30 kg/m2 306 (24.3) 27.1 –2.8 –11.5 0.02*
By sex
Men
Women
Smoking 150 (28.4) 23.2 5.2 18.3 <0.001* 196 (26.1) 21.3 4.8 18.4 <0.001*
Excessive alcohol use 44 (10.8) 11.9 –1.1 –10.2 0.23 33 (5.8) 6.2 –0.4 –6.9 1.00
Physical inactivity 298 (58.3) 52.9 5.4 9.3 0.05* 467 (62.7) 58.3 4.4 7.0 0.03*
BMI ≥25 kg/m2 385 (72.9) 73.3 –0.4 –0.5 0.81 445 (60.9) 64.5 –3.6 –5.9 0.01*
BMI ≥30 kg/m2 109 (20.6) 22.7 –2.1 –10.2 0.12 197 (27.0) 30.2 –3.2 –11.9 0.08
By age group
Age <60 years
Age ≥60 years
Smoking 271 (32.3) 26.5 5.8 18.0 <0.01* 75 (17.0) 13.8 3.2 18.8 <0.01*
Excessive alcohol use 62 (9.2) 9.5 –0.3 –3.3 0.81 15 (4.9) 6.8 –1.9 –38.8 0.11
Physical inactivity 507 (61.4) 55.3 6.1 9.9 <0.01* 258 (60.0) 57.8 2.2 3.7 0.50
BMI ≥25 kg/m2 584 (70.6) 73.5 –2.9 –4.1 0.02* 246 (57.1) 58.1 –1.0 –1.8 0.71
BMI ≥30 kg/m2 221 (26.7) 30.2 –3.5 –13.1 <0.01* 85 (19.7) 21.2 –1.5 –7.6 1.00

Absolute risk reduction (ARR) is the absolute risk difference between before and after percentages, while the relative risk reduction (RRR) consists of the ARR as a percentage of the risk factor before hypertension diagnosis.

*Statistically significant at P≤0.05 as calculated by McNemar’s test. BMI Body mass index