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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Environ Int. 2016 Sep 24;97:195–203. doi: 10.1016/j.envint.2016.09.011

Table 1.

Demographic characteristics of the 334 study participants and their community and household characteristics.

Control
Intervention
All control Built-by-NGO Self-improved Traditional All intervention No-repair Need-repair
Number of participants 179 23 35 121 155 99 56
Participants’ demographic characteristics
Age (y) a 29.4 ± 6.8 30.7 ± 7.4 28.7 ± 6.9 29.4 ± 6.7 30.3 ± 8 29.5 ± 7.3 31.7 ± 8.9
Elementary education or less 125 (78%) 14 (70%) 26 (90%) 85 (76%) 96 (72%) 60 (70%) 36 (75%)
No second-hand smoke 158 (90%) 20 (95%) 31 (91%) 107 (88%) 138 (91%) 89 (91%) 49 (92%)
No grilled food in the last 48 h 156 (92%) 20 (100%) 28 (82%) 108 (93%) 142 (93%) 91 (93%) 51 (94%)
Daily cook time (h) a 3.0 ± 0.9 3.0 ± 0.5 3.0 ± 1.0 3.0 ± 0.9 2.8 ± 0.8 2.8 ± 0.8 2.8 ± 0.8
Participating household and community characteristics
Enclosed kitchen with 3 or more walls and a roof 137 (79%) 15 (71%) 26 (79%) 96 (81%) 114 (76%) 73 (74%) 41 (79%)
Wood type: Eucalipto or Hualango 133 (76%) 13 (62%) 23 (68%) 97 (80%) 103 (68%) 66 (68%) 37 (70%)
Community traffic: 1–5 cars/day 107 (65%) 10 (53%) 24 (73%) 73 (65%) 103 (76%) 68 (76%) 35 (78%)
Light type: candle 108 (65%) 13 (65%) 23 (74%) 72 (63%) 79 (56%) 53 (60%) 26 (50%)
Length of stove use
 <1 y 46 (31%) 12 (60%) 15 (54%) 19 (19%) 135 (100%) 86 (100%) 49 (100%)
 1–4 y 64 (42%) 7 (35%) 10 (35%) 47 (47%) 0 0 0
 >5 y 40 (27%) 1 (5%) 3 (11%) 36 (35%) 0 0 0
a

Participants’ age and daily cook time are expressed as mean with standard deviation. All other parameters are expressed as count with percentage of non-missing responses to that question in each group and sub-group.