Baseline characteristics of plancha and open fire groups.
| Recruitment group A (300) | Recruitment group B (204) | |||
|---|---|---|---|---|
| Plancha | Open fire | Plancha | Open fire | |
| *Local sauna | ||||
| †When you are cooking, do your eyes get irritated? | ||||
| ‡When you are cooking or immediately after, do you get a headache? §When you are cooking or immediately after, does your back hurt? | ||||
| ¶Percentage of the total number of women. | ||||
| **Median of mean carbon monoxide values in breath values from two best readings of three blows. | ||||
| Number of women | 153 | 147 | 106 | 98 |
| Baseline household survey (BHS) | ||||
| Characteristics of the women | ||||
| Mean (SD) age (years) | 27.7 (7.2) | 28.3 (7.3) | 26.9 (7.3) | 27.9 (6.8) |
| Pregnant (%) | 13 (8.5) | 11 (7.5) | 73 (68.9) | 65 (66.3) |
| Mean number (SD) of children <12 years | 3.7 (1.7) | 3.8 (1.7) | 3.6 (1.8) | 3.8 (1.6) |
| Ever smoked (%) | 1 (0.7) | 1 (0.7) | 0 | 0 |
| Household characteristics | ||||
| Family member smoke inside (%) | 32 (20.9) | 42 (28.6) | 20 (18.9) | 24 (24.5) |
| Mean number (SD) cigarettes smoked by husband | 1.04 (0.2) | 1.06 (0.2) | 1.20 (0.4) | 1.05 (0.2) |
| Have temascal * (%) | 124 (81.0) | 115 (78.2) | 101 (95.3) | 91 (92.9) |
| Temascal > once a week (%) | 55 (35.9) | 55 (37.4) | 45 (42.4) | 41 (41.8) |
| Kitchen separate from room (%) | 128 (83.7) | 126 (85.7) | 87 (82.1) | 85 (86.7) |
| Economic indicators | ||||
| Owns TV (%) | 28 (18.3) | 25 (17.0) | 25 (23.6) | 18 (18.4) |
| Owns bicycle (%) | 29 (19.0) | 30 (20.4) | 30 (28.3) | 21 (21.4) |
| Have pigs (%) | 107 (69.9) | 102 (69.4) | 62 (58.5) | 60 (61.2) |
| Symptoms from cooking at first survey | ||||
| Eyes always irritated† (%) | 101 (66.0) | 96 (65.3) | 59 (55.7) | 54 (55.1) |
| Headache always‡ (%) | 53 (34.6) | 43 (29.3) | 37 (34.9) | 32 (32.7) |
| Back pain always§ (%) | 22 (14.4) | 31 (21.1) | 31 (29.2) | 29 (29.6) |
| Baseline study of health outcomes (BHeQ) | ||||
| Sore eyes last month (%)¶ | — | — | 57 (53.8) | 51 (52.0) |
| Frequency of sore eyes | — | — | 17 (16.0) | 19 (19.4) |
| Up to most days a week | — | — | 40 (37.7) | 32 (32.6) |
| Every day | ||||
| Headaches past month (%)¶ | ||||
| Frequency of headaches | — | — | 79 (74.5) | 68 (69.4) |
| Up to most days a week | — | — | 47 (44.3) | 40 (40.8) |
| Every day | — | — | 31 (32.9) | 28 (28.6) |
| Intensity of the headache | ||||
| Mild/average | — | — | 62 (58.5) | 51 (52.0) |
| Strong | — | — | 17 (16.0) | 17 (17.3) |
| Back pain last month (%)¶ | — | — | 66 (62.3) | 61 (62.2) |
| Frequency of back pain | — | — | 32 (30.2) | 36 (36.7) |
| Up to most days a week | — | — | 33 (31.1) | 25 (25.5) |
| Every day | ||||
| Median CO in exhaled breath (ppm)** | — | — | 8.5 | 9.0 |