TABLE 4.
Mediation effect of television watching on lung cancer and squamous cell lung cancer via smoking quantity.
| Exposure | Mediator | Outcomes | Total effect a Effect X b Effect M c Mediation effect d Mediated proportion | |||||
|---|---|---|---|---|---|---|---|---|
| Effect size (95% CI) | Effect size (95% CI) | Effect size (95% CI) | Effect size (95% CI) | p values | (%) (95% CI) | |||
| Television watching | Cigarettes per day | Lung cancer | 0.64 (0.34, 0.93) | 0.12 (0.06, 0.19) | 2.50 (1.76, 3.25) | 0.31 (0.13, 0.52) | 0.00066435 | 51.8% (19.2%, 104.0%) |
| Television watching | Cigarettes per day | Squamous cell lung cancer | 0.86 (0.42, 1.31) | 0.12 (0.06, 0.19) | 2.67 (2.06, 3.27) | 0.33 (0.14, 0.53) | 0.00047622 | 41.6% (15.2%, 88.9%) |
a
Total effect: the effect of exposures on outcomes.
b
Effect X: the effect of exposures on mediators.
c
Effect M: the effect of mediators on outcomes.
d
Mediation effect: the indirect effect of exposures on outcomes via mediators.