Fewer than one in five American adults has current training in CPR, and that rate is even lower among older adults, a new study finds.

A telephone survey of more than 9,000 adults 18 and older found that only 18% were currently trained in CPR delivery. About 65% said they had received CPR training at some time.

The likelihood of ever having had CPR training was 43% higher among those with higher levels of education and 7% higher among those with higher household incomes. Adults 50 and older were half as likely to be CPR-trained as younger adults.

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