Subgroup | Pooled risk ratio | 95% confidence interval |
---|---|---|
Study participants | ||
Father smoker | ||
Anuntaseree (2001), Thailand | 1.10 | 0.78 - 1.57 |
Ersu (2004), Turkey | 3.53 | 1.34 - 9.30 |
Gill (2012), New Zealand | 1.70 | 1.00 - 2.80 |
Sahin (2009), Turkey | 1.62 | 0.89 - 2.93 |
Sogut (2009), Turkey | 1.56 | 0.85 - 2.87 |
Subtotal | 1.43 | 1.13 - 1.81 |
Mother smoker | ||
Brunetti (2011), Italy | 9.75 | 3.22 - 29.56 |
Ersu (2004), Turkey | 3.48 | 1.61 - 7.51 |
Gill (2012), New Zealand | 1.70 | 1.00 - 3.00 |
Li S (2010), China | 1.65 | 1.34 - 2.02 |
Sahin (2009), Turkey | 1.63 | 0.82 - 3.24 |
Sogut (2005), Turkey | 2.19 | 0.70 - 6.84 |
Sogut (2009), Turkey | 2.17 | 1.18 - 4.00 |
Subtotal | 1.84 | 1.55 - 2.18 |