* Americans more likely to have trouble getting treatments

* Dealing with insurance companies a big drain on doctors

* Health reform should help, survey suggests

By Julie Steenhuysen

CHICAGO, Nov 5 (Reuters) - Americans are more likely than people in 10 other countries to have trouble getting medical treatment because of insurance restrictions or cost, an international survey of primary care doctors released on Wednesday found.

While the United States spends more than twice as much as other developed countries on healthcare, it lags well behind in key measures of quality, the annual survey found.

"Our weak primary care system puts patients at risk and results in poor health outcomes and higher costs," said Karen Davis, president of the Commonwealth Fund, a private health policy group that sponsored the survey.

"The survey provides yet another reminder of the urgent need for reform that makes acceptable, high-quality care a national priority," Davis told a news briefing.

Other countries have solved problems the United States is still struggling to conquer, she said.