Table 4

Effect of the intervention on medication adherence, body mass index, salt consumption, hypertension awareness, medications and tobacco use

CharacteristicsIntervention armControl armNet difference
(95% CI)
P value
NMean or % change (baseline - post intervention) (SEM/SD)NMean or % change (baseline - post intervention) (SEM/SD)
Change in medication adherence score from baseline389*+1.44 (0.11)452*+0.58 (0.06)+0.86
(0.61 to 1.11)
<0.001
Change in body mass index (kg/m2)917−0.40 (0.11)920−0.38 (0.12)−0.02
(−0.30 to 0.35)
0.89
Change in average daily per capita salt consumption (g)917−0.83 (0.13)920+0.26
(0.16)
−1.10
(−1.6 to −0.66)
<0.001
% of participants who interpreted their blood pressure correctly917+13.6% (1.1)920−0.2%
(0.15)
+13.8
(11.2 to 15.7)
<0.001
% of participants on antihypertensive medicines917+14.2% (1.1)920+8.8%
(0.9)
+5.4%
(2.48 to 8.32)
<0.001
% of current tobacco smokers917−1.5920−0.3−1.2%
(−0.33 to −2.33)
<0.001
  • *Assessed for those who were taking antihypertensive drugs at the baseline.