Table 7 Duration of usage of principal fuel type
From: Distribution of sources of household air pollution: a cross-sectional study in Cameroon
Fuel types | Duration | Urban | Rural | Total | P value | |||
|---|---|---|---|---|---|---|---|---|
n (%) | (95% CI) | n (%) | (95% CI) | n (%) | (95% CI) | |||
Firewood | <= 5 yrs | 14 (7.3) | (4.1–12.0) | 9 (1.6) | (0.8–2.9) | 23 (3.0) | (2.0–4.5) | < 0.0005 |
> 5 yrs | 177 (92.7) | (88.0–95.9) | 569 (98.4) | (97.1–99.2) | 746 (97.0) | (95.5–98.0) | ||
Gas | <= 5 yrs | 40 (28.0) | (20.8–36.1) | 10 (14.5) | (7.2–25.0) | 50 (23.6) | (18.0–29.9) | 0.03 |
> 5 yrs | 103 (72.0) | (63.9–79.1) | 59 (85.5) | (75.0–92.8) | 162 (76.4) | (70.1–82.0) | ||
Charcoal | <= 5 yrs | 6 (18.2) | (7.0–35.5) | 1 (16.7) | (0.4–64.1) | 7 (17.5) | (7.5–33.5) | 0.93 |
> 5 yrs | 27 (81.8) | (64.5–93.0) | 5 (83.3) | (35.9–99.6) | 32 (82.0) | (66.5–92.5) | ||
Kerosene | <= 5 yrs | 4 (28.6) | (8.4–58.1) | 1 (8.3) | (0.2–38.5) | 5 (19.2) | (6.5–39.3) | 0.19 |
> 5 yrs | 10 (71.4) | (41.9–91.6) | 11 (91.7) | (61.5–99.8) | 21 (80.8) | (60.6–93.4) | ||
Saw dust | <= 5 yrs | 4 (15.4) | (4.4–34.9) | 1 (16.7) | (0.4–64.1) | 5 (15.6) | (5.3–32.8) | 0.94 |
> 5 yrs | 22 (84.6) | (65.1–95.6) | 5 (83.3) | (35.9–99.6) | 27 (84.4) | (67.2–94.7) | ||