Table 2.
Stove use measurements collected with during initial adoption (1) and sustained use (2) with Stove Use Monitors (SUMs) and during sustained use with recall questionnaires (3).
| Both groups |
Group 1 newer users |
Group 2 older users |
|
|---|---|---|---|
| Data Collection | |||
| (1) Initial Adoption – SUMs Measurements | |||
| Number of cookstovesa in 1st monitoring period (percent) | 50 (100%) | 30 (60%) | 20 (40%) |
| (2) Sustained Use – SUMs Measurements | |||
| Mean cookstoves in periods 1 to 16 (S.D.) | 72.4 (2.7) | 45.9 (2.3) | 26.5 (2.8) |
| Mean monitoring periods per cookstove (range) | 13.7 (1–15) | 12.9 (10–15) | |
| Total cookstoves and days measured | 30,122 | 19,058 | 11,064 |
| (3) Sustained Use – Recall Questionnaires & SUMs | |||
| Questionnaires with SUMsb during 15-day recall | 192 | 131 | 61 |
| Questionnaires with SUMs during 3-month recall | 168 | 109 | 59 |
a
At each house only one chimney cookstove was monitored.
b
The responses to the quarterly recall questionnaires of each household were matched with SUMs measures recorded during the 3-month and 15-day periods prior to the questionnaire date.