A new study from doctors at Harvard Medical School and Massachusetts General Hospital confirms that smokers who vape regularly are far more likely to quit smoking than those who don’t vape. In fact, smokers who vaped daily were 77 percent more likely to quit and remain abstinent from cigarettes after two years.

The study was published online in the journal Nicotine and Tobacco Research. Interestingly, lead author Sara Kalkhoran is known for her 2016 meta-analysis, co-authored with Stanton Glantz, that purported to show that vaping actually reduced cessation rates for smokers.

The new study used data from the first three years of the FDA’s Population Assessment of Tobacco and Health (PATH) study, and looked at more than 8,000 people who smoked. The subjects provided personal information about their health and smoking habits, and then checked in with updates after one and two years.