> In Illinois, for example, approximately 79.1% of households with children cook with gas, whereas in Florida, the figure is only 9.1%. States with a higher percentage of children living in households with gas stoves have higher proportions of current childhood asthma attributable to gas stove usage.<p>Wait, holdup. Gas is <i>8x</i> more common in Illinois? If there was an actual link wouldn't we expect to see much more than the minor difference in Asthma rates?<p>It seems more likely there is something else going on. Like for one thing, the correlation between places with cold, dry winters and the use of gas fixtures.