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. 2012 Oct 2;12:344. doi: 10.1186/1472-6963-12-344

Table 5.

Predicted smoking attributable total costs per child

  Mean difference [95% CI] p-value
No exposure
-
 
 
Not at home, but at other places
8€
[−67€ - 76€]
0.824
At home (patio/balcony)
87€
[10€ - 165€]
0.030
At home (indoors) 144€ [6€ - 305€] 0.034

Means, confidence intervals (CI) and p-values were derived from 1000 bootstrap replications of the recycled predictions using the percentile method. Means correspond to differences in Figure 1.