Table 2.
Comparison of smoking and SHS exposure variables between cases and controls
|
Measures |
Cases |
Controls |
P-value |
|---|---|---|---|
| n /% | n /% | ||
|
Mother smoked during pregnancy* | |||
| Yes |
24 / 5.2 |
17 / 3.7 |
0. 263 |
| No |
438 / 94.8 |
445/ 96.3 |
|
|
Average number of cigarettes mother smoked per day during pregnancy ** | |||
| Range 0–20 per day, mean ± SD |
0.25 ±1.46 |
0.17 ±1.26 |
0.40 |
|
Child’s exposure to SHS during pregnancy* | |||
| Yes |
147 / 31.8 |
95 / 20.6 |
0.01 |
| No |
315 / 68.2 |
367 / 79.4 |
|
|
Number of smokers in household* | |||
| 1-2 persons |
271 / 93.1 |
236 / 97.1 |
0.036 |
| 3-4 persons |
20 / 6.9 |
6 / 2.5 |
|
| 4-5 persons |
0 / 0 |
1 / 0.4 |
|
|
Total number of cigarettes smoked in household per day * | |||
| Range 1–40 per day, mean ± SD |
12.08 ±7.71 |
9.95 ±6.90 |
<0.001 |
|
Child’s exposure to cigarette smoke while being held by a caregiver* | |||
| Yes |
121/26.2 |
31/6.7 |
0.01 |
| No |
341/73.8 |
431/93.3 |
|
|
Child’s exposure to smoke produced from cooking* | |||
| Yes |
134 / 45.3 |
131 / 44.3 |
0.9 |
| No |
162 / 54.7 |
165 / 55.7 |
|
| *Chi-squared test |
|
|
|
| ** Student’s t-test | |||