India, June 3 -- Petco Health and Wellness Co. (WOOF) on Wednesday reported first-quarter results, with loss widening from last year. The company reaffirmed its full-year guidance and issued second-quarter expectations.

The company reported a net loss of $15.1 million, or $0.05 per share, compared with a net loss of $11.7 million, or $0.04 per share, a year ago. The wider loss primarily reflected a $11.8 million loss on debt extinguishment and modification related to refinancing activities.

Net sales for the quarter edged up 0.2% to $1.50 billion from $1.49 billion a year earlier, while comparable sales increased 0.7%.

Growth in services and other revenue, which rose to $268.6 million from $251.5 million, offset a slight decline in produ...