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Description of passive diffusion CO tubes deployed in intervention and control households during household air pollution exposure assessment in rural Peru
| Intervention homes | Control homes | |||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Child | Mother | Kitchen | Child | Mother | Kitchen | |
|
| ||||||
| Total number of tubes | 172 | 182 | 182 | 173 | 197 | 197 |
| Broken | 9 | 5 | 0 | 10 | 18 | 2 |
| Lost | 5 | 14 | 1 | 11 | 17 | 0 |
| Unavailable during pick-up | 4 | 2 | 2 | 4 | 8 | 4 |
| Sampling error | 0 | 0 | 55 | 0 | 0 | 42 |
| Tubes with stains | 0 | 0 | 11 | 0 | 0 | 29 |
| Final sample size | 154 | 161 | 113 | 148 | 154 | 120 |
