An annual report on obesity says Oklahoma leads the nation in the percentage increase in obesity rates over the past 15 years.

The report by two public health groups released Thursday says the number of obese Oklahomans jumped from 12.9 percent in 1995 to 31.4 percent in 2010 — an increase of 18.5 percent.

The report by Trust for America’s Health and The Robert Wood Johnson Foundation ranks Oklahoma as the seventh-fattest state in the nation. The state was ranked 40th in 1995.

The report also says Oklahoma recorded sharp increases in the prevalence of obesity-related diabetes and hypertension over the past 15 years.

The state’s diabetes rate was up 6.8 percent in 2010, the nation’s second-largest increase.

The hypertension rate was up 10.2 percent, which was the fourth-largest increase.