Table 3.

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

Study author	BP type	Mean difference in BP (mm Hg)	95% CIs	P 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.