Douglas Coltharp
Analyst · Adam Feinstein from Barclays Capital
Thank you, Jay, and good morning, everyone. I'll focus my comments on the fourth quarter, but also highlight certain results for the full year and elaborate on a number of assumptions underlying our 2012 guidance.
As Jay mentioned, Q4 represented a strong finish to a strong 2011. Revenue increased 5.5% in Q4, driven by inpatient revenue growth of 6.1%. Inpatient revenue benefited from both volume and pricing increases. Beginning with volume, our discharges increased 2.1% in Q4 '11 over Q4 '10, inclusive of 1.7% same-store growth. As a reminder, we were up against a tough comparison, having generated discharge growth of 5.9% in Q4 '10. For the full year 2011, we grew discharges by 5.2%, 3.3% same-store, demonstrating our ability to continue to gain market share.
Moving to pricing. Our revenue per discharge for Q4 increased by 4% over Q4 '10. As anticipated, we realized a 1.6% increase in our Medicare reimbursement rates. Our Q4 revenue per discharge was also aided by a shift in our payor mix, 72.8% Medicare for Q4 '11 versus 71.6% in Q4 '10, and a shift in our patient mix. Neurological cases comprised 17.5% of our mix in Q4 '11 versus 15.4% in Q4 '10. Stroke was unchanged, 16.4%, and replacement of lower extremity joints declined from 9.8% in Q4 '10 to 8.6% in Q4 '11. Our outpatient and other revenue declined 1.6% Q4 '11, primarily as a result of the closure of 6 satellite clinics during the course of 2011. At the end of 2011, we continued to operate 26 outpatient satellites. Please be reminded that the vast majority of our outpatient revenue comes from our hospitals and not from the satellite clinics.
Our continued focus on expense control, combined with the 5.5% revenue increase, resulted in 110 basis points of incremental operating leverage in Q4 '11 versus the prior-year quarter. SWB as a percentage of net operating revenue rose by 10 basis points in Q4 '11 to 48.5%. As enhanced labor productivity, EPOB improved 3.46 in Q4 '11 versus 3.50 in Q4 '10, was offset by the ramp-up cost of our 2 new hospitals, Cypress and Drake, also by modestly higher group health benefits and workers' compensation expenses and our decision to provide all of our employees with an extra half day of paid time-off as a form of holiday bonus.
Please recall that Q4 '10 included a $3.3 million favorable adjustment related to workers' compensation accruals. Although Q4 '11 workers' compensation was higher than the prior-year period, it also included a beneficial adjustment. At this time, we are expecting workers' compensation expenses to normalize in 2012 resulting in year-over-year expense increase of approximately $5 million.
Hospital-related expenses for Q4 '11 were 21.6% of net operating revenues, a decline of 120 basis points from Q4 '10. This category of expenses was favorably impacted in Q4 '11 by an adjustment to our general and professional liability insurance accruals and a nonrecurring franchise tax refund of $2.4 million, which we do not expect to repeat in 2012. Partially offsetting this benefit was an increase in bad debt expense in Q4 '11 compared to Q4 '10. As we had anticipated, bad debt expense as a percentage of net operating revenues increased to 1.2% in Q4 '11 as compared to 0.3% in Q4 '10, an increase of $4.5 million. This was based on both an increase in medical necessity claims reviews and a decline in prior period recoveries attributable primarily to a reduction in the pool of outstanding claims.
Looking forward to 2012. We expect bad debt expense to approximate 1.3% of net operating revenues versus 1% for 2011 based on the aforementioned factors, as well as an expected lengthening of the Medicare denial adjudication process related to a mounting administrative backlog. This anticipated increase in bad debt expense would create a headwind of approximately $6 million to adjusted EBITDA and EPS growth in 2012. Remaining on the 2012 operating expense outlook for a moment, please recall that we are now in the midst of a system-wide rollout of a new clinical information system. This rollout will occur over an approximate 5-year timeframe and is expected to result in an incremental $4 million of operating expenses in 2012. We anticipate approximately 70% of the total cost of the CIS rollout will be capitalized, and the balance expensed.
Turning back to 2011. Q4 adjusted EBITDA of $122.9 million represented 9.6% growth over the same period in 2010. For fiscal year 2011, adjusted EBITDA of $466.2 million represented an increase of 13.8% over 2010. While we are obviously very pleased with the strength of these operating results, most notably with the discharge volume growth, we recognize the beneficial impact of the expense items we just discussed and the corresponding hurdle they create for adjusted EBITDA growth in 2012. We continue to believe that our business model should generate a 5% to 8% adjusted EBITDA CAGR over the 3-year period covering 2012 through 2014.
Interest expense for Q4 '11 of $23.1 million compared favorably to $34.2 million in Q4 '10 and was reflective of both our declining leverage and the improvements we have made to our debt capital structure. As Jay mentioned previously, we reduced debt by an incremental $73 million in Q4 '11, bringing the total reduction for 2011 to $257 million and resulting in a year-end leverage ratio of 2.7x. The benefits of our reduced leverage and approved capital structure will be increasingly evident in 2012 as we anticipate full year interest expense of approximately $96 million versus $119.4 million for 2011.
The year-over-year earnings per share comparison continues to be primarily impacted by fluctuations in our effective tax rate. Diluted earnings per share for Q4 '11 were $0.50 per share compared to $7.15 per share for Q4 '10. Earnings per share in Q4 '10 included a large income tax benefit primarily attributable to the release of a substantial portion of a valuation allowance. On a full year basis, earnings per share for 2011 were $1.42 per share as compared to $8.20 per share in 2010. Again, EPS for 2010 included a large income tax benefit primarily related to a valuation allowance release. You will find a detailed comparison of our Q4 and 2011 EPS to the prior period on Slide 10 of the supplemental slides. Our federal NOL balance at December 31, 2011, was approximately $1.3 billion and the remaining valuation allowance at the end of the year was approximately $50 million. Cash income taxes for 2011 were $9.1 million and are anticipated to be $7 million to $10 million in 2012.
Let's move now to free cash flow. And I direct your attention to Slide 16 of our supplemental slides. As we discussed beginning in our Q3 earnings call, we anticipated strong adjusted free cash flow growth in Q4, aided in part by the shifting of approximately $16 million in interest payments into Q3. During Q4 '11, we generated adjusted free cash flow of $99.2 million, resulting in full year 2011 adjusted free cash flow of $243.3 million, an increase of 34.1% over 2010. This was driven by our higher adjusted EBITDA and benefited from lower cash interest payments and swap-related payments.
Our adjusted free cash for 2011 was net of $50.8 million in maintenance capital expenditures. As we have stated on several previous occasions, we expect 2012 maintenance CapEx to increase to $75 million to $85 million based primarily on the rollout of our clinical information system and 2 substantial hospital renovation projects. We expect to continue to generate a significant level of adjusted free cash flow in 2012. But the year-over-year growth is anticipated to be slower, in large part owing to the 34% increase in 2011. Although we will reap further benefits from reduced cash interest expense and cessation of swap-related payments, these items are likely to be offset by the aforementioned increase in maintenance CapEx and an anticipated $30 million to $40 million increase in working capital.
Let me elaborate for a moment on the anticipated increase in working capital. There are 2 primary components to this. First, we anticipate an increase in our accounts receivable balance, stemming from both a higher volume of medical necessity claims reviews, an additional CMG has been added for 2012, and the previously mentioned lengthening of the adjudication process related to the mounting administrative backlog. The second component is an expected increase in payroll liabilities primarily related to one of the tranches of our long-term incentive plan, or LTIP. The shares awarded under the 2009 LTIP were earned at a high level based on the strong performance of the company in 2009 and 2010. Those earned shares will fully vest in 2012. As restricted shares vest, we offer our employees the option to have shares withheld to cover the related payroll tax. When employees choose this option, which most do, the company retains the shares but must remit cash to the IRS to cover the payroll taxes. We expect such cash payments to approximate $10 million in 2012. This payment will have no effect on our 2012 adjusted EBITDA or earnings per share. But it does flow through working capital as a reduction in accrued liability, and as a result, impacts adjusted free cash flow.
Similar to my comments on adjusted EBITDA, we continue to believe that our business model should generate an adjusted free cash flow CAGR of 12% to 17% over the 3-year period, extending from 2012 to 2014, but annual results may be outside of that range. As we had previously disclosed, there was no activity under our $125 million share repurchase authorization during Q4 '11.
I'll wrap things up with total CapEx, which was approximately $114 million for 2011. In addition to the previously discussed $50.8 million in maintenance CapEx, this included approximately $63 million in growth CapEx. Our growth CapEx in 2011 included the following: approximately $12.5 million in capacity expansions; 2 de novos, Cypress, which opened in Q4 '11, and Ocala, which will open in 2012; our acquisition of Drake; and the purchase of 2 hospital properties, Morgantown and Lake View, previously operated under long-term leases. This is consistent with our belief that control of our real estate adds to our competitive advantage. And with that, I'll turn it back over to Jay.