For example, a 12-year study of 19,000 white American women found that 101 genetic markers that had been statistically linked to heart disease had no predictive value. Self-reported family histories, by contrast, proved very accurate in predicting the disease.
比如，一项耗时12年、观察了19 000名美国白人女性的研究发现，与心脏病具有统计关系的101遗传标记没有预测价值。相反，自我报告的家族史在预测心脏病方面相当准确。