Table 2.
Children's exposure to secondhand smoke, mothers’ smoking, and indoor smoking at baseline, mid-intervention, postintervention, and follow-up measures
| Variable | Baseline | 3 months (mid-intervention) | 6 months (postintervention) | 12 months (follow-up) | 18 months (follow-up) |
| Children’s reported exposure to secondhand smoke (number of cigarettes/week) | |||||
| Exposure from mothers inside the home | |||||
| Counseled | 8.73 (5.79–12.93) | 3.19 (1.73–5.42) | 1.76 (0.93–2.96) | 2.04 (1.06–3.47) | 1.93 (0.92–3.48) |
| Controls | 10.37 (6.97–15.22) | 6.51 (4.03–10.23) | 4.68 (2.93–7.20) | 4.38 (2.41–7.49) | 6.16 (3.61–10.12) |
| Total exposure from all smokers inside and outside the home | |||||
| Counseled | 33.67 (25.88–43.72) | 11.51 (7.16–18.18) | 4.99 (2.82–8.40) | 6.74 (3.78–11.55) | 5.15 (2.71–9.17) |
| Controls | 40.17 (30.79–52.31) | 23.68 (15.80–35.26) | 17.16 (11.56–25.24) | 15.33 (9.54–24.28) | 22.97 (15.14–34.58) |
| Children’s urine cotinine concentration (ng/ml)a | |||||
| Counseled | 9.74 (7.78–12.15) | 9.98 (7.52–13.15) | 7.27 (5.38–9.72) | 7.38 (5.31–10.14) | 7.63 (5.43–10.58) |
| Controls | 14.70 (12.08–17.84) | 12.70 (9.73–16.50) | 10.95 (8.29–14.37) | 9.70 (7.42–12.58) | 10.06 (7.64–13.14) |
| Mothers’ reported smoking (number of cigarettes/week) | |||||
| Counseled | 89.23 (79.85–98.60) | 77.20 (64.64–89.76) | 58.53 (47.45–69.61) | 69.79 (58.65–80.93) | 77.91 (64.22–91.60) |
| Controls | 93.58 (80.76–106.40) | 89.35 (77.97–100.72) | 88.83 (78.58–99.08) | 90.77 (77.47–104.06) | 92.88 (80.59–105.16) |
| Reported smoking indoors at home (number of cigarettes/week) | |||||
| Mothers | |||||
| Counseled | 15.84 (10.73–23.19) | 6.64 (3.74–11.31) | 3.51 (2.01–5.74) | 4.09 (2.28–6.89) | 3.94 (2.06–6.97) |
| Controls | 18.81 (13.15–26.73) | 10.34 (6.42–16.32) | 8.72 (5.43–13.68) | 9.55 (5.50–16.14) | 10.37 (6.16–17.06) |
| All smokers | |||||
| Counseled | 27.18 (17.78–41.28) | 9.69 (5.24–17.32) | 5.46 (2.96–9.52) | 7.23 (3.76–13.22) | 6.46 (3.16–12.40) |
| Controls | 35.58 (23.38–53.86) | 18.95 (10.93–32.38) | 14.81 (8.90–24.24) | 14.95 (8.10–26.96) | 19.18 (11.15–32.52) |
Note. Values are geometric means and their 95% CIs.
a
Baseline group differences for children’s urine cotinine concentration were statistically significant (p = .005). Baseline group differences were not statistically significant (all ps > .05) for any reported smoking or exposure variables.