Andrew Witty
Chief Executive Officer at UnitedHealth Group
Thank you, and good morning, and thank you all for joining us. As we discussed a number of weeks ago, during the quarter, we saw a somewhat higher than usual range of movement in certain areas of care activity. As you would expect, this inevitably impacted some elements of our business, but we overcame these dynamics with strength in other areas. Our second quarter performance reflects the capabilities, agility and dedication of our people as they responded to the changes. As a team, we're confident in our ability to robustly grow in this fluid healthcare environment. Indeed, as I hope you saw in our release today, revenue growth in the quarter was strong and well-balanced across our enterprise, increasing by more than $12 billion to nearly $93 billion.
Let me provide a few highlights of our growth. First, the number of patients served by Optum Health under fully accountable value-based care arrangements grew by more than 900,000 over this time last year. Among the new patients, we welcomed a significant number have complex needs. These people have serious health challenges, limited economic resources and often living communities where it can be difficult to access high-quality care. Our ability to support their needs is distinctive and a direct result of the investments we have made to provide coordinated and comprehensive medical, pharmacy and behavioral care. Foundational capabilities that will help the patients we serve live healthier lives and drive growth far into the future.
Optum Rx and Optum Insight revenue grew double-digits on expanded capabilities and products that are generating new sales and opportunities. UnitedHealthcare's growth was strong and diversified as well. Today, we're serving nearly 1.6 million more people in our commercial and public sector program offerings than we did last year. This durable growth driven by our colleagues' relentless focus on quality and execution enabled us to achieve second quarter adjusted earnings per share of $6.14, and to strengthen our full-year outlook to between $24.70 to $25 per share.
We know there is great interest in understanding the recent care activity I just mentioned. So I'll give you an overview of how we're seeing care patterns progress and how we're responding. I do want to underscore the most critical point first. Making high-quality care more affordable and accessible is at the core of our mission, having more people obtaining the care they need is a positive trend for individuals and our health system and society.
As we discussed several weeks ago, during the second quarter, we observed increased care patterns, notably in outpatient surgeries for seniors, and especially with certain orthopedic procedures, which may have been postponed. John will provide some additional detail on this later. As we look to 2024, we have developed compelling Medicare Advantage offerings. Our teams were of course, thoughtful both in our response to the CMS rate notice and in incorporating these care activity trends into our June benefit filings.
Even in this challenging funding environment, we continue to prioritize the stability and affordability our members have come to rely on from UnitedHealthcare. We're confident that next year, we will once again grow at a pace exceeding that of the broader market. While of a much lesser impact than senior outpatient care, we also are seeing increased care activity in behavioral. Over the past few years, behavioral care patterns have been accelerating as people increasingly feel comfortable seeking services.
Just since last year, the percentage of people who are accessing behavioral care has increased by double digits. From our perspective, it's an encouraging sign that more people are seeking help, yet the ongoing shortage of qualified care providers has caused significant access challenges. To address the issue, Optum Health has expanded its network by tens of thousands of care professionals this year and we are developing our benefit offerings, assuming demand for behavioral care services will continue to rise.
Optum Health value-based care models are continuing to deliver especially strong and measurable results for people, today, serving more than 4 million patients and dozens of payers. Optum Health and the patients and payers it serves share a common desire to seek improved health outcomes and experiences, while ultimately lowering the cost of care. And we're pleased to see more evidence supporting the efficacy of value-based care.
Last month, researchers at Yale Medicine working in collaboration with Optum, published a peer-reviewed study about in-home visits, an important element in our value-based care approach. The study found patients who received our in-home preventative wellness assessments compared with those who hadn't, made fewer emergency department visits and spent fewer nights in hospitals across four common conditions, depression, hypertension, coronary artery disease and Type 2 diabetes. They also experienced reduced wait times for follow-up primary care. Yale Medicine's research follows another peer-reviewed study published in JAMA in December, which found Medicare Advantage patients in Optum's fully accountable care model showed significantly better health outcomes compared to people in Medicare fee-for-service.
Optum Health patients fared better on each of eight key metrics, including hospital readmissions and emergency department visits. We see these results as compelling validation of the value-based care approach and signal more strongly its promise and potential as we expand these care models to many millions more patients in the years ahead.
I'll now turn it over to UnitedHealth Group President and Chief Operating Officer, Dirk McMahon to elaborate on how we're focusing on affordability, transparency and simplicity for the people we serve. Dirk?