Fig. 2

Comparison of age-adjusted geometric mean BPb by passive smoking status: status 1 no smoking family member (n = 162), status 2 smoking family member present but does not smoke in the presence of child (n = 115), status 3 smoking family member present and smokes in the presence of child (n = 64). Standard error of adjusted mean is indicated on the bar graph. * and ** indicate significant difference at p < 0.05 and p < 0.01, respectively