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Table 1 Study scheme for timing and visits of interventions, Honduras, August 2015 – May 2018

From: Study protocol for a stepped-wedge randomized cookstove intervention in rural Honduras: household air pollution and cardiometabolic health

Stepped-wedge randomized controlled trial

Timing of study visits for data collection

Arm 1 (n=115)

Stove type

Arm 2 (n=115)

Stove Type

Visit 1: Aug – Dec 2015

Traditional

Traditional

Visit 2: Jan – May 2016

Traditional

Traditional

 

Arm 1 receives intervention

 

Visit 3: Sep – Dec 2016

Justa

Traditional

Visit 4: Feb – May 2017

Justa

Traditional

  

Arm 2 receives intervention

Visit 5: Sep – Dec 2017

Justa

Justa

Visit 6: Feb – May 2018

Justa

Justa