81 percent of Iowa voters support allowing doctors to prescribe marijuana, according to a poll released this week by Quinnipiac University. The same data say just 41 percent of Iowans support allowing personal marijuana use.

That’s way out of line with a poll from the Des Moines Register released two weeks ago, which said just 59 percent of Iowa adults are on board with medical pot and 28 percent supporting recreational marijuana. The Quinnipiac poll interviewed twice as many people, but the numbers are still way outside the margins of error.

The Quinnipiac numbers might be a little high, but they’re closer in line with data from other states: “Opposition to personal marijuana is higher in Iowa than in any state we’ve surveyed so far on this subject. Support for medical marijuana is comparable to other states,“ assistant poll director Peter Brown said.