. Author manuscript; available in PMC: 2013 Jan 1.

Published in final edited form as: J Cyst Fibros. 2011 Oct 13;11(1):34–39. doi: 10.1016/j.jcf.2011.09.005

Table 2.

Environmental tobacco smoke exposure during different Critical Periods in the Patient’s Life

	Periconceptional Period	Pregnancy	Postnatal Period	Post-diagnosis	At the present time (2008)

Smoking Mothers	21 (21.9) 71.0 cig/week	15 (15.6) 38.3 cig/week	23 (24.0)	21 (21.9)	21 (21.6) 89.6 cig/week

Smoking Fathers	43 (45.7) 149.8 cig/week	43 (45.7) 147.8 cig/week At home: 38.6 cig/week	44 (46.8)	34 (35.4)	24 (26.1) 138.1 cig/week

Tobacco smoke exposure Patients	During Oogenesis 56 (58.3)	73 (76.0)^*	53 (55.8)^**	45 (47.4) ^***	Active smoker 8/97 = 8.2% 8/56 (>15 yrs) =14.3%
Tobacco smoke exposure Patients	During Spermatogene sis 51 (53.1)	73 (76.0)^*	53 (55.8)^**	45 (47.4) ^***	24 (24.7)^*** 45.25 cig/week

Refers to intrauterine tobacco exposure (a smoker at home, work, etc.).

^**

At least one smoker in the home after birth.

^***

At least one smoker in the home (not including the patient).