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| percent
of total cooking events using Philips n (%) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| days after intervention | N | no usea | 0 | 1–19% | 20–39% | 40–59% | 60–79% | 80–99% | 100% |
| 0–30 | 162 | 0 (0) | 1 (0) | 11 (7) | 34 (21) | 55 (34) | 33 (20) | 19 (12) | 9 (6) |
| 31–60 | 155 | 5 (3) | 8 (5) | 25 (16) | 25 (16) | 34 (22) | 23 (15) | 13 (8) | 22 (14) |
| 61–90 | 146 | 4 (3) | 8 (6) | 30 (20) | 29 (20) | 19 (13) | 13 (9) | 16 (11) | 27 (18) |
No use of either stove recorded.
