Table 3

Change in blood pressure (BP) using cook stove as an intervention for randomised and non-randomised studies

Study authorBP typeMean difference in BP (mm Hg)95% CIsP value
Randomised
 Alexander et al (Nigeria)13 SBP
DBP		−1.3
−2.8		−4.4 to 1.8
−5.0  to 0.6		0.40
0.01
 McCracken et al (Guatemala)15 SBP
DBP		−3.7
−3.0		−8.1 to 0.6
−5.7  to 0.4		0.10
0.02
 Quinn et al (Ghana)16 SBP
DBP		−2.1
−0.1		−6.6 to 2.4
−3.2 to 3.0		0.35
0.95
Non-randomised
 Alexander et al (Bolivia)12 SBP
DBP		−5.5
−1.1		 *
* 		0.01
0.50
 Clark et al (Nicaragua)14 SBP
DBP		−5.9†
−1.8†		−11.3  to 0.4
−5.4 to 1.7		0.05
0.09

  • Level of significance: p<0.05.

  • ↵*CIs not reported because Mann-Whitney test was used.

  • †Women aged ≥40 years mm Hg.

  • DBP, diastolic blood pressure; SBP, systolic blood pressure.