a nonsignificant trendP = 0.168
There was a nonsignificant trend for a more extreme inverse association with higher amounts of daily cigarette consumption ( χ 2 = 1.90; P = 0.168; Fig. 1 ).
There was a nonsignificant trend for a more extreme inverse association with higher amounts of daily cigarette consumption ( χ 2 = 1.90; P = 0.168; Fig. 1 ).