About 10% of non-coffee drinkers took more than 12 months to conceive, compared with 17% of consumers of four or more cups daily. The estimated relative risk of failure to conceive within one year (after adjusting for age, parity, weight for height, welfare status, and tobacco and alcohol consumption) was 1.8 (95% CI 1.1-3.0) among consumers of four or more cups of coffee compared with non-coffee drinkers.
True or not is between a line. To be on the safe side avoid coffee. No harm right?