The preceding sentence says "If a heart attack patient is a woman and her emergency physician is a man, he says, her risk of death suddenly rises by about 12 percent."
The 11.9 percent mentioned in your quote refers to probability of death for the population (i.e. a random person where the gender of the patient and the doctor is unknown).
The 12.4 percent refers to probability of death for a woman given a male doctor. If that is 12 percent higher, as the quote above says, then the probability of death for a woman given a female doctor is about 11.07%
So its an increase of 1.3 percentage points. The article kind of obfuscates that though.
There is definitely a market for betting on weather. One of the principal components of changes in natural gas and power prices is unexpected changes in weather.
The 11.9 percent mentioned in your quote refers to probability of death for the population (i.e. a random person where the gender of the patient and the doctor is unknown).
The 12.4 percent refers to probability of death for a woman given a male doctor. If that is 12 percent higher, as the quote above says, then the probability of death for a woman given a female doctor is about 11.07%
So its an increase of 1.3 percentage points. The article kind of obfuscates that though.