Sherif Abdou
Analyst · Nephron Research
Thank you, Ryan. Good afternoon, and welcome, everyone, to our first quarter 2024 earnings conference call. I am joined today by Aric, Amir, Bill and Atul.
We would like to begin by providing an update on the tremendous progress made in the first quarter. We just reported a strong Q1, which exceeded our internal expectation on our top line, but fell short on our adjusted EBITDA target. Overall, we are quite pleased with the start of the year, and therefore, we're reaffirming our previous full year guidance of positive $20 million to positive $40 million of adjusted EBITDA for the year.
Starting with the top line. Our revenue for the first quarter of 2024 grew approximately 29% year-over-year, supported by a strong pipeline. As we previously indicated, our per member per month funding was up approximately 8% year-over-year despite the headwinds of substantial membership growth along with the V28 and V24 changes and the benchmark reduction.
Our Medicare lives have grown to approximately 126,800 lives or 23% growth year-over-year, which really exceeds the low end of our guidance range for the full year. This includes approximately 11,000 ACO REACH lives, up from 7,400 at the end of last year. As we said before, our percentage of persistent lives is a key driver of our pathway to profitability in 2024.
I'm pleased to report on the success of our member renewal in the new year. Approximately 90% are now persistent as defined by lives from December 2023 that remained with us in January 2024, up from 86% last year. To date, we have launched in 6 new counties, adding 8,000 to 10,000 new lives with an existing payer partner, expanding our total number of counties served to 27.
Operating expenses improved to $26.2 million versus $35.6 million during the first quarter of 2023, representing a 26% year-over-year decrease and robust operational efficiencies. Our medical expense in the quarter were approximately 12% lower sequentially, which reflects our view of a normalizing utilization trend consistent with the commentary we made on our last quarter call. While we agree with the principle of conservatism in the current environment, we also believe that we are over conservative to the tune between $20 to $30 PMPM based on the actual claims run out we've experienced year-to-date for 2023 data service. Atul will go into much more detail, but we will continue to work with our actuarial auditor to align our reserve with actual paid claims.
With that as a context, our adjusted EBITDA was a loss of $19.8 million, roughly flat to the first quarter of 2023. On a PMPM basis, we were approximately $86 better than Q4 of last year and approximately $11 better than the first quarter of 2023.
Lastly, we are thrilled to announce our strategic partnership with [ Innovaccer ] to leverage their advanced AI platform. Through this partnership, we will advance P3 in the areas of predictive modeling, accelerate quality, gap closure and provide our clinician with actionable data at the point of care.
With that, I'd like to turn it over to our CFO, Atul Kavthekar.