Help smokers quit: Tell them their “lung age”
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Perform spirometry on patients who smoke— even if they're asymptomatic—and show them their lung age—that is, the average age of a nonsmoker with a forced expiratory volume at 1 second (FEV1) equal to theirs. Doing so can help patients kick the habit. Strength of recommendation B: Based on a single well-done randomized controlled trial (RCT).
Journal of Family Practice, 57(9) 2008: 584-586.