Figure 2.3bGender-specific effects of smoking on level of pulmonary function in girls, 10–18 years of age

Percent Difference (95% Confidence Interval)
Smoking FrequencyFVCFEV1FEV1/FVCFEF25–75
Never0000
Former0.52 (−1.17–2.24)0.11 (−1.42–1.66)−0.45 (−1.35–0.90)−0.38 (−3.23–2.93)
Light1.84 (0.87–2.72)0.98 (0.10–1.87)−0.86 (−1.35–0.49)−0.43 (−2.03–1.61)
Medium1.89 (0.75–3.04)0.10 (−1.04–1.26)−1.52 (−2.12–0.61)−2.25 (−4.41–2.20)
Heavy1.41 (0.04–2.80)−2.06 (−3.13–1.08)−1.88 (−2.68–0.81)−3.16 (−5.81–2.72)

From: 2, The Health Consequences of Tobacco Use Among Young People

Cover of Preventing Tobacco Use Among Youth and Young Adults
Preventing Tobacco Use Among Youth and Young Adults: A Report of the Surgeon General.
National Center for Chronic Disease Prevention and Health Promotion (US) Office on Smoking and Health.
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