Yes, chivalry is dead.

More than 350,000 cardiac arrests happen outside of the hospital each year, where CPR is the only immediate treatment available and can potentially triple a victim’s chances for survival.

But if you’re a woman, you might be outta luck.

Two new studies presented at the 2018 American Heart Association’s Resuscitation Science Symposium determined that the odds of receiving life-saving aid from a bystander vary considerably based on gender.

Previous research has already shown that women are less likely to receive CPR following cardiac arrest than men, but a new survey led by the Colorado School of Medicine in Denver asked online respondents to explain why.