AMSTERDAM (Reuters) - Philips (>> PHILIPS) has reported first-quarter earnings showing continued weakness in the healthcare equipment operations that are increasingly vital for the Dutch group as it prepares to spin off its lighting operations.

The maker of consumer goods like shavers, toothbrushes and coffee makers as well as healthcare equipment such as CT scanners and patient monitoring systems said operating profit in healthcare fell to 17 million euros (12 million pounds) from 109 million in the same period in 2014.

Philips blamed the fall on a mix of restructuring charges and higher investment in the unit, which delivered 43 percent of group revenue in 2014 but which suffered from a lengthy production shutdown in the United States that year.

The company said on Tuesday healthcare sales grew 1 percent in the first quarter of 2015, while order intake "showed low single-digit growth". Chief Executive Frans Van Houten said U.S. production would only be back at full capacity toward the end of 2015.

"The U.S. economy is growing, but in the markets in which we participate, let's say healthcare, we see a more flattish outlook," Van Houten told reporters.

He also said an "enormous slowdown" in the Chinese healthcare market was continuing, though those negatives were offset by improving order intake in western Europe, Africa and India.

Barclays analyst David Vos said U.S. market share lost to competitors GE (>> General Electric Company) and Siemens (>> Siemens AG) "will be costly to regain or could be lost altogether."

He said Barclays, which cut its rating on Philips to "underweight" from "equal weight", is also concerned the Chinese government has begun a concerted effort to push Philips and Siemens aside in favour of domestic competitors.

Philips shares, which had risen on Monday to their highest in more than a year, fell 3.4 percent by 0839 GMT. The stock has underperformed the Dutch AEX index of blue chips by about 10 percent over the past year.

Group earnings before interest, taxes and amortisation rose 7.6 percent to 327 million euros, in line with an average forecast of 324 million from analysts polled by Reuters.

Comparable sales rose 2 percent to 5.3 billion euros, thanks to growth in western Europe and some emerging markets.

Both the company's lighting division and its consumer products division increased operating earnings and the company forecast a "modest" increase in company-wide comparable sales for the full year.

With Philips' EBITA margin at 6.1 percent of sales in the quarter, Van Houten repeated a January warning that the EBITA margin in 2016 will be closer to 10 percent than the 11 percent Philips is targeting.

Philips is planning to sell its lighting division, the world's largest lighting maker, via a stock market flotation in the first half of 2016.

(Editing by Muralikumar Anantharaman and David Holmes)

By Toby Sterling

Stocks treated in this article : General Electric Company, PHILIPS, Siemens AG