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Analysis of the interaction of smoking and the course of pregnancy (trimesters) on the concentrations of D-Dimers (a) and fibrinogen (b). Abbreviations: p ANOVA, p values from two-factor ANOVA. No significant differences in the LSD tests (a, b). Smoking group (1st trimester n = 6, 2nd trimester n = 5, and 3rd trimester n = 5). Nonsmoking group (1st trimester n = 65, 2nd trimester n = 61, and 3rd trimester n = 57).
