Table 2.
Comparison of Differences in Household Smoking Characteristics Between Baseline and Follow-up by Group
| Household Smoking Characteristic | Baseline (n=126) |
Follow-up (n=115) |
P Valuea | |
|---|---|---|---|---|
| Caregiver is smoker,b No. (%) | ||||
| Control group | 33 (75) | 28 (67) |  |
|
| Air cleaner group | 23 (56) | 18 (51) | .73 | |
| Air cleaner plus health coach group | 30 (73) | 24 (63) | ||
| No. of cigarettes smoked by caregiver per day,c median (IQR) | ||||
| Control group | 10 (5–12) | 10 (5–10) |  |
|
| Air cleaner group | 6 (3–10) | 7 (5–10) | .05 | |
| Air cleaner plus health coach group | 7 (3–10) | 5 (3–7) | ||
| No. of cigarettes smoked in the home,c median (IQR) | ||||
| Control group | 6 (3–10) | 4.5 (2–5.5) |  |
|
| Air cleaner group | 3 (2–6) | 2 (0–5) | .34 | |
| Air cleaner plus health coach group | 3 (2–5) | 1 (0–4) | ||
| Smoking in caregiver bedroom,b No. (%) | ||||
| Control group | 24 (55) | 17 (40) |  |
|
| Air cleaner group | 14(34) | 9 (26) | .13 | |
| Air cleaner plus health coach group | 20 (49) | 9 (24) | ||
| Caregiver report successful or very successful in keeping child away from cigarette smoke,b No. (%) | ||||
| Control group | 31 (70) | 33 (79) |  |
|
| Air cleaner group | 30 (73) | 33 (94) | .47 | |
| Air cleaner plus health coach group | 31 (76) | 37 (97) |
Abbreviation: IQR, interquartile range.
a
Based on differences between baseline and follow-up.
b
Based on χ2 test.
c
Kruskal-Wallis rank sum tests were used to compare variables among the 3 groups.