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This article says that “twice as many … with sleep apnea had a stroke or died of that or another cause. …” This sounds serious, but your readers can’t correctly assign importance to “twice as many” because you omit numbers of deaths.

David Kollas
Tolland, Conn.

Among the 697 people with sleep apnea, 22 suffered strokes and 50 other people died of that or another cause during the study. Among the 325 people without sleep apnea, there were 2 strokes and 14 deaths from strokes or other causes. —N. Seppa