Third Quarter 2022 Financial Results
Total revenue in the third quarter of 2022 increased $12.8 million, or 24%, to $65.3 million, compared to $52.5 million in the third quarter of 2021. The increase in total revenue was attributable to an increase of $10.2 million in sales of the airway clearance product line, which includes the AffloVest product acquired on September 8, 2021, and an increase of $2.6 million, or 5%, in sales and rentals of the lymphedema product line compared to the third quarter of 2021.
Gross profit in the third quarter of 2022 increased $9.8 million, or 27%, to $46.8 million, compared to $37.0 million in the third quarter of 2021. Gross margin was 71.7% of revenue, compared to 70.4% of revenue in the third quarter of 2021. Non-GAAP gross margin was 72.2% of revenue, compared to 71.8% of revenue in the third quarter of 2021.
Operating expenses in the third quarter of 2022 increased $10.1 million, or 26%, to $48.4 million, compared to $38.3 million in the third quarter of 2021.
Operating loss was $1.6 million in the third quarter of 2022, compared to $1.4 million in the third quarter of 2021. Non-GAAP operating income in the third quarter of 2022 was $3.9 million, compared to $1.0 million in the third quarter of 2021.
Other expense was $0.7 million in the third quarter of 2022, compared to $0.1 million in the third quarter of 2021. The change in other expense was primarily due to an increase in interest expense.
Income tax benefit was $77,000 in the third quarter of 2022, compared to an expense of $1.9 million in the third quarter of 2021. The difference is related to a full valuation allowance being recorded against all net deferred tax assets in the current year period, whereas no valuation allowance was recorded in the third quarter of 2021.
Net loss in the third quarter of 2022 was $2.3 million, or $0.11 per diluted share, compared to $3.4 million, or $0.17 per diluted share, in the third quarter of 2021. Non-GAAP net income in the third quarter of 2022 was $1.9 million, compared to non-GAAP net loss $1.6 million in the third quarter of 2021.
Weighted average shares used to compute diluted net loss per share were 20.1 million and 19.8 million for the third quarters of 2022 and 2021, respectively.
Adjusted EBITDA was $7.2 million in the third quarter of 2022, compared to $4.1 million in the third quarter of 2021.
First Nine Months 2022 Financial Results:
Total revenue for the nine months ended September 30, 2022, increased $26.6 million, or 18%, to $172.9 million, compared to $146.3 million for the nine months ended September 30, 2021. The increase in revenue was attributable to an increase of $25.5 million in sales of the airway clearance product line, and an increase of $1.0 million, or 1%, in sales and rentals of the lymphedema product line.
Net loss for the nine months ended September 30, 2022, was $22.5 million, or $1.12 per diluted share, compared $4.3 million, or $0.22 per diluted share, for the nine months ended September 30,