During the fourth quarter of 2018, the Company incurred additional expenses and experienced losses of revenues estimated at $31 million, or $0.07 per diluted share, associated with Hurricane Michael’s impact on our Florida panhandle facilities. This amount is prior to any potential insurance recoveries. Also, during the fourth quarter of 2018, the Company recorded a benefit of $49 million, or $0.11 per diluted share, from an insurance recovery related to Hurricane Harvey business interruption losses incurred during 2017.
Same facility admissions and equivalent admissions increased 1.9 percent in the fourth quarter of 2018 compared to the prior year period. Same facility emergency room visits declined 2.1 percent in the fourth quarter of 2018, compared to the prior year period. Same facility inpatient surgeries increased 0.1 percent, while same facility outpatient surgeries increased 0.8 percent in the fourth quarter of 2018 compared to the same period of 2017. Same facility revenue per equivalent admission increased 4.4 percent in the fourth quarter of 2018, compared to the fourth quarter of 2017.
Salaries and benefits, supplies and other operating expenses totaled $9.770 billion, or 79.6 percent of revenues, in the fourth quarter of 2018, compared to $9.209 billion, or 79.7 percent of revenues, in the fourth quarter of 2017. On a same facility basis, salaries and benefits, supplies and other operating expenses totaled $8.936 billion, or 76.8 percent of revenues, for the fourth quarter of 2018, compared to $8.420 billion, or 77.0 percent of revenues, for the same period of 2017.
Year Ended December 31, 2018
Revenues for the year ended December 31, 2018 totaled $46.677 billion, compared to $43.614 billion in the same period of 2017. Net income attributable to HCA Healthcare, Inc. was $3.787 billion, or $10.66 per diluted share, compared to $2.216 billion, or $5.95 per diluted share, for the year ended December 31, 2017. Results for the year ended December 31, 2018 include gains on sales of facilities of $428 million, or $0.91 per diluted share.
For 2018, Adjusted EBITDA totaled $8.949 billion compared to $8.233 billion in 2017. Adjusted EBITDA is anon-GAAP financial measure. A table providing supplemental information on Adjusted EBITDA and reconciling net income attributable to HCA Healthcare, Inc. to Adjusted EBITDA is included in this release.
The Company recognized a tax benefit of $551 million, or $1.55 per diluted share, on net income attributable to HCA Healthcare, Inc., excluding gains on sales of facilities and losses on retirement of debt, for the year ended December 31, 2018, related to the impact of the Tax Cuts and Jobs Act, $484 million due to a reduction in its effective tax rate and a $67 million favorable adjustment to its deferred tax assets and liabilities. Results for the year ended December 31, 2018 also include a $124 million tax benefit, or $0.35 per diluted share, compared to $82 million, or $0.22 per diluted share, for the same period of 2017, related to employee equity award settlements. Results for 2017 also included anon-cash increase in the Company’s provision for income taxes of $301 million, or $0.81 per diluted share, related to the estimated impact of the Tax Cuts and Jobs Act on our deferred tax assets and liabilities.
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