US STOCKS-S&P 500 bounces back after nearing August low
* Consumer confidence highest since January
* Seven of 10 S&P sectors higher
* Health care index bounces back
* Dow up 0.3 pct, S&P up 0.12 pct, Nasdaq down 0.59 pct (Updates to close, adds fresh comment)
By Noel Randewich
Sept 29 (Reuters) - U.S. stocks ended higher after a volatile session on Tuesday as concerns about the health of the global economy kept investors cautious after more than a month of turbulence.
The S&P 500 recovered after falling earlier to within 0.26 percent of lows it touched in August, when fears of a slowdown in China shocked global markets.
"I would never have expected that we would take out that low and we haven't yet, but we sure are close. A retest is a good thing but it needs to hold," said Randy Frederick, managing director of trading and derivatives for Charles Schwab in Austin.
Seven of the 10 S&P sectors rose, with the healthcare index up 0.9 percent, ending a seven-day losing streak, thanks in part to gains in Johnson & Johnson and Gilead Sciences. Continuación...