Fig. 2From: Smoking-related symptomatology in pregnant smokers during ad libitum smoking and following overnight smoking abstinenceAssociations between smoking-related symptomatology (SRS) and mood and levels of a progesterone, b estradiol, and c P/E2 ratio after overnight abstinence, adjusted for cigarettes per day at screening and trimester of pregnancy. The bands indicate 95% confidence intervals. There were no statistically significant associations (p > 0.05 for all measures)Back to article page