US STOCKS-Wall St climbs as upbeat results lift mood
* McDonald's up as China demand recovers
* Dow Chemicals rises, boosting materials sector
* Hospital operators tank
* Indexes up: Dow 1.7 pct, S&P 1.6 pct, Nasdaq 1.5 pct (Updates to late afternoon)
Oct 22 (Reuters) - U.S. stocks jumped on Thursday on stronger-than-expected corporate results from companies including McDonald's and cues from the European Central Bank about extending its stimulus program.
McDonald's shares jumped 8.2 percent to $110.96 after its quarterly results beat estimates as demand recovered in China.
Dow Chemical rose 4.6 percent to $49.68 after its results. The S&P materials index was up 2.5 percent.
ECB President Mario Draghi said the bank could extend its stimulus program beyond 2016 to boost euro zone growth and boost inflation closer to 2 percent.
"That's all that central banks have to do anymore. Just hint that they're going to throw easy money in there and it scares the shorts and enables the bulls and bang!, we've got these nice pops," said Jeff Clark, trading analyst at Stansberry Research. Continuación...