Third Quarter 2023 Financial Results
Total revenue in the third quarter of 2023 increased $4.3 million, or 6.6%, to $69.6 million, compared to $65.3 million in the third quarter of 2022. The increase in total revenue was attributable to an increase of $8.3 million, or 15.3%, in sales and rentals of the lymphedema product line, which more than offset a $4.0 million, or 35.9%, decrease in sales of the airway clearance product line in the quarter ended September 30, 2023.
Gross profit in the third quarter of 2023 increased $2.6 million, or 5.5%, to $49.4 million, compared to $46.8 million in the third quarter of 2022. Gross margin was 70.9% of revenue, compared to 71.7% of revenue in the third quarter of 2022. Non-GAAP gross margin was 71.4% of revenue, compared to 72.2% of revenue in the third quarter of 2022.
Operating expenses in the third quarter of 2023 decreased $7.0 million, or 14.5%, to $41.4 million, compared to $48.4 million in the third quarter of 2022.
Operating income was $8.0 million in the third quarter of 2023, compared to an operating loss of $1.6 million in the third quarter of 2022. Non-GAAP operating income in the third quarter of 2023 was $5.2 million, compared to non-GAAP operating income of $3.9 million in the third quarter of 2022.
Other expense was $0.4 million in the third quarter of 2023, compared to $0.7 million in the third quarter of 2022.
Income tax benefit was $14.7 million in the third quarter of 2023, compared to $0.1 million in the third quarter of 2022.
Net income in the third quarter of 2023 was $22.3 million, or $0.94 per diluted share, compared to a net loss of $2.3 million, or $0.11 per diluted share, in the third quarter of 2022. Non-GAAP net income in the third quarter of 2023 was $20.2 million, compared to non-GAAP net income of $1.9 million in the third quarter of 2022.
Weighted average shares used to compute diluted net income and loss per share were 23.8 million and 20.1 million for the third quarters of 2023 and 2022, respectively.
Adjusted EBITDA was $7.7 million in the third quarter of 2023, compared to $7.2 million in the third quarter of 2022.
First Nine Months 2023 Financial Results
Total revenue for the nine months ended September 30, 2023, increased $23.9 million, or 13.8%, to $196.8 million, compared to $172.9 million for the nine months ended September 30, 2022. The increase in revenue was attributable to an increase of $25.8 million, or 17.6%, in sales and rentals of the lymphedema product line, which more than offset a $1.9 million, or 7.1%, decrease in sales of the airway clearance product line for the nine months ended September 30, 2023.
Net income for the nine months ended September 30, 2023, was $20.3 million, or $0.88 per diluted share, compared to a net loss of $22.5 million, or $1.12 per diluted share, for the nine months ended September 30, 2022. Non-GAAP net income for the nine months ended September 30, 2023, was