we will refer to adjusted ebitda throughout the remainder of management 's discussion and analysis of financial condition and results of operations . the table in “ selected financial data ” reconciles net income and income from operations to adjusted ebitda and should be referenced when we discuss adjusted ebitda . 49 summary financial results year ended december 31 , 2017 for the year ended december 31 , 2017 , our net operating revenues increased 3.7 % to $ 4,443.6 million , compared to $ 4,286.0 million for the year ended december 31 , 2016 . income from operations increased 18.7 % to $ 355.9 million for the year ended december 31 , 2017 , compared to $ 299.8 million for the year ended december 31 , 2016 . our adjusted ebitda increased $ 72.2 million , or 15.5 % , to $ 538.0 million for the year ended december 31 , 2017 , compared to $ 465.8 million for the year ended december 31 , 2016 . our adjusted ebitda margin improved to 12.1 % for the year ended december 31 , 2017 , compared to 10.9 % for the year ended december 31 , 2016 . the following table provides a reconciliation of our segment performance measures to our consolidated operating results for the year ended december 31 , 2017 . replace_table_token_11_th _ n/m — not meaningful . the following table provides the change in segment performance measures for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . replace_table_token_12_th _ n/m—not meaningful . long term acute care segment . we operated 100 ltchs at december 31 , 2017 , compared to 103 ltchs at december 31 , 2016 . while our bed counts , admissions , and patient days decreased during the year ended december 31 , 2017 due to a decline in the number of hospitals we operated , our revenue per patient day and occupancy rate improved . since fully transitioning to operating under the new medicare patient criteria regulations , our ltchs have experienced improvements in income from operations and adjusted ebitda as a result of increases in net revenue per patient day and lower relative operating expenses . our long term acute care segment contributed to increases in consolidated income from operations of $ 26.2 million and adjusted ebitda of $ 28.1 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . our adjusted ebitda margin improved to 14.4 % for the year ended december 31 , 2017 , compared to 12.6 % for the year ended december 31 , 2016 . 50 inpatient rehabilitation segment . we operated 24 irfs at december 31 , 2017 , compared to 20 irfs at december 31 , 2016 . our admissions , patient days , net revenue per patient day , and occupancy rate increased during the year ended december 31 , 2017 . these increases are principally due to several of our new inpatient rehabilitation facilities which commenced operations during 2016 and 2017. our inpatient rehabilitation segment contributed to increases in our consolidated net operating revenues of $ 127.5 million , income from operations of $ 25.7 million , and adjusted ebitda of $ 33.1 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . our adjusted ebitda margin improved to 14.3 % for the year ended december 31 , 2017 , compared to 11.3 % for the year ended december 31 , 2016 . outpatient rehabilitation segment . we operated 1,616 clinics at december 31 , 2017 , compared to 1,611 clinics at december 31 , 2016 . we acquired physiotherapy on march 4 , 2016 , and sold our contract therapy business on march 31 , 2016 , which affects our year-to-year comparisons as of the date for each of these events . our visits and net revenue per visit increased during the year ended december 31 , 2017 , resulting in increases of $ 25.5 million in our consolidated net operating revenues compared to the year ended december 31 , 2016 . our relative operating expenses also increased for the year ended december 31 , 2017 compared to the year ended december 31 , 2016 , resulting in nominal increases in income from operations and adjusted ebitda during the year ended december 31 , 2017 . our adjusted ebitda margin was 13.0 % for both the years ended december 31 , 2017 and december 31 , 2016 . concentra segment . we operated 312 centers at december 31 , 2017 , compared to 300 centers at december 31 , 2016 . visits in our centers increased during the year ended december 31 , 2017 , which contributed to increases in our consolidated net operating revenues of $ 33.4 million , and our relative operating expenses also improved . this resulted in increases to our consolidated income from operations of $ 10.3 million and adjusted ebitda of $ 14.6 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016. our adjusted ebitda margin improved to 15.2 % for the year ended december 31 , 2017 , compared to 14.3 % for the year ended december 31 , 2016 . our consolidated net income increased $ 95.4 million , or 76.1 % , to $ 220.6 million for the year ended december 31 , 2017 , compared to $ 125.3 million for the year ended december 31 , 2016 . the increase in our net income is principally due to an increase in income from operations for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 and the recognition of an income tax benefit for the year ended december 31 , 2017 . story_separator_special_tag the standard federal rate was set at $ 42,476 , an increase from the standard federal rate applicable during fiscal year 2016 of $ 41,763. the update to the standard federal rate for fiscal year 2017 included a market basket increase of 2.8 % , less a productivity adjustment of 0.3 % , and less a reduction of 0.75 % mandated by the aca . the fixed‑loss amount for high cost outlier cases paid under ltch‑pps was set at $ 21,943 , an increase from the fixed‑loss amount in the 2016 fiscal year of $ 16,423. the fixed‑loss amount for high cost outlier cases paid under the site‑neutral payment rate was set at $ 23,573 , an increase from the fixed‑loss amount in the 2016 fiscal year of $ 22,538. fiscal year 2018 . on august 14 , 2017 , cms published the final rule updating policies and payment rates for the ltch-pps for fiscal year 2018 ( affecting discharges and cost reporting periods beginning on or after october 1 , 2017 through september 30 , 2018 ) . certain errors in the final rule were corrected in a final rule published october 4 , 2017. the standard federal rate was set at $ 41,415 , a decrease from the standard federal rate applicable during fiscal year 2017 of $ 42,476. the update to the standard federal rate for fiscal year 2018 included a market basket increase of 2.7 % , less a productivity adjustment of 0.6 % , and less a reduction of 0.75 % mandated by the aca . the update to the standard federal rate for fiscal year 2018 is impacted further by the medicare access and chip reauthorization act of 2015 , which limits the update for fiscal year 2018 to 1.0 % . the fixed-loss amount for high cost outlier cases paid under ltch-pps was set at $ 27,381 , an increase from the fixed-loss amount in the 2017 fiscal year of $ 21,943. the fixed-loss amount for high cost outlier cases paid under the site-neutral payment rate was set at $ 26,537 , an increase from the fixed-loss amount in the 2017 fiscal year of $ 23,573 . 56 patient criteria the bba of 2013 , enacted december 26 , 2013 , establishes a dual‑rate ltch-pps for medicare patients discharged from an ltch . specifically , for medicare patients discharged in cost reporting periods beginning on or after october 1 , 2015 , ltchs will be reimbursed at the ltch-pps standard federal payment rate only if , immediately preceding the patient 's ltch admission , the patient was discharged from a “ subsection ( d ) hospital ” ( generally , a short‑term acute care hospital paid under ipps ) and either the patient 's stay included at least three days in an intensive care unit ( icu ) or coronary care unit ( ccu ) at the subsection ( d ) hospital , or the patient was assigned to an ms-ltc-drg for cases receiving at least 96 hours of ventilator services in the ltch . in addition , to be paid at the ltch-pps standard federal payment rate , the patient 's discharge from the ltch may not include a principal diagnosis relating to psychiatric or rehabilitation services . for any medicare patient who does not meet these criteria , the ltch will be paid a lower “ site neutral ” payment rate , which will be the lower of : ( i ) the ipps comparable per diem payment rate capped at the ms-drg payment rate plus any outlier payments ; or ( ii ) 100 percent of the estimated costs for services . the site neutral payment rate for those patients not paid at the ltch-pps standard federal payment rate is subject to a transition period . during the transition period ( applicable to hospital cost reporting periods beginning on or after october 1 , 2015 through september 30 , 2019 ) , a blended rate will be paid for medicare patients not meeting the new criteria that is equal to 50 % of the site neutral payment rate amount and 50 % of the standard federal payment rate amount . for discharges in cost reporting periods beginning on or after october 1 , 2019 , only the site neutral payment rate will apply for medicare patients not meeting the new criteria . for hospital cost reporting periods beginning on or after october 1 , 2017 through september 30 , 2026 , the ipps comparable per diem payment amount ( including any applicable outlier payment ) used to determine the site neutral payment rate will be reduced by 4.6 % after any annual payment rate update . in addition , for cost reporting periods beginning on or after october 1 , 2019 , qualifying discharges from an ltch will continue to be paid at the ltch-pps standard federal payment rate , unless the number of discharges for which payment is made under the site‑neutral payment rate is greater than 50 % of the total number of discharges from the ltch for that period . if the number of discharges for which payment is made under the site‑neutral payment rate is greater than 50 % , then beginning in the next cost reporting period all discharges from the ltch will be reimbursed at the site‑neutral payment rate . the bba of 2013 requires cms to establish a process for an ltch subject to only the site‑neutral payment rate to be reinstated for payment under the dual-rate ltch‑pps . payment adjustments , including the interrupted stay policy and the 25 percent rule ( discussed below ) , apply to ltch discharges regardless of whether the case is paid at the standard federal payment rate or the site‑neutral payment rate . however , short stay outlier payment adjustments do not apply to cases paid at the site‑neutral payment rate . cms calculates the annual recalibration of the ms-ltc-drg relative payment weighting factors using only

loss on early retirement of debt on march 6 , 2017 , we refinanced select 's 2011 senior secured credit facility which resulted in losses on early retirement of debt of $ 19.7 million during the year ended december 31 , 2017 . on march 4 , 2016 , we refinanced a portion of our term loans under select 's 2011 senior secured credit facility which resulted in a loss on early retirement of debt of $ 0.8 million . on september 26 , 2016 , concentra prepaid the second lien term loan under the concentra credit facilities , resulting in a loss on early retirement of debt of approximately $ 10.9 million . equity in earnings of unconsolidated subsidiaries for the year ended december 31 , 2017 , we had equity in earnings of unconsolidated subsidiaries of $ 21.1 million , compared to $ 19.9 million for the year ended december 31 , 2016 . the increase in our equity in earnings of unconsolidated subsidiaries resulted principally from the improved performance of rehabilitation businesses in which we own a minority interest . non-operating gain we recognized a non-operating gain of $ 42.7 million for the year ended december 31 , 2016 , principally due to the sale of our contract therapy businesses for $ 65.0 million , which resulted in a non-operating gain of $ 33.9 million . interest expense interest expense was $ 154.7 million for the year ended december 31 , 2017 , compared to $ 170.1 million for the year ended december 31 , 2016 . the decrease in interest expense was principally the result of decreases in our interest rates associated with the refinancing of select 's 2011 senior secured credit facility during the quarter ended march 31 , 2017 and the concentra credit facilities during the quarter ended september 30 , 2016. income taxes we recorded an income tax benefit of $ 18.2 million for the year ended december 31 , 2017 . we recorded income tax expense of $ 55.5 million for the year ended december 31 , 2016 , which represented an effective tax rate of 30.7 % .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```loss on early retirement of debt on march 6 , 2017 , we refinanced select 's 2011 senior secured credit facility which resulted in losses on early retirement of debt of $ 19.7 million during the year ended december 31 , 2017 . on march 4 , 2016 , we refinanced a portion of our term loans under select 's 2011 senior secured credit facility which resulted in a loss on early retirement of debt of $ 0.8 million . on september 26 , 2016 , concentra prepaid the second lien term loan under the concentra credit facilities , resulting in a loss on early retirement of debt of approximately $ 10.9 million . equity in earnings of unconsolidated subsidiaries for the year ended december 31 , 2017 , we had equity in earnings of unconsolidated subsidiaries of $ 21.1 million , compared to $ 19.9 million for the year ended december 31 , 2016 . the increase in our equity in earnings of unconsolidated subsidiaries resulted principally from the improved performance of rehabilitation businesses in which we own a minority interest . non-operating gain we recognized a non-operating gain of $ 42.7 million for the year ended december 31 , 2016 , principally due to the sale of our contract therapy businesses for $ 65.0 million , which resulted in a non-operating gain of $ 33.9 million . interest expense interest expense was $ 154.7 million for the year ended december 31 , 2017 , compared to $ 170.1 million for the year ended december 31 , 2016 . the decrease in interest expense was principally the result of decreases in our interest rates associated with the refinancing of select 's 2011 senior secured credit facility during the quarter ended march 31 , 2017 and the concentra credit facilities during the quarter ended september 30 , 2016. income taxes we recorded an income tax benefit of $ 18.2 million for the year ended december 31 , 2017 . we recorded income tax expense of $ 55.5 million for the year ended december 31 , 2016 , which represented an effective tax rate of 30.7 % .
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 Suspicious Activity Report : we will refer to adjusted ebitda throughout the remainder of management 's discussion and analysis of financial condition and results of operations . the table in “ selected financial data ” reconciles net income and income from operations to adjusted ebitda and should be referenced when we discuss adjusted ebitda . 49 summary financial results year ended december 31 , 2017 for the year ended december 31 , 2017 , our net operating revenues increased 3.7 % to $ 4,443.6 million , compared to $ 4,286.0 million for the year ended december 31 , 2016 . income from operations increased 18.7 % to $ 355.9 million for the year ended december 31 , 2017 , compared to $ 299.8 million for the year ended december 31 , 2016 . our adjusted ebitda increased $ 72.2 million , or 15.5 % , to $ 538.0 million for the year ended december 31 , 2017 , compared to $ 465.8 million for the year ended december 31 , 2016 . our adjusted ebitda margin improved to 12.1 % for the year ended december 31 , 2017 , compared to 10.9 % for the year ended december 31 , 2016 . the following table provides a reconciliation of our segment performance measures to our consolidated operating results for the year ended december 31 , 2017 . replace_table_token_11_th _ n/m — not meaningful . the following table provides the change in segment performance measures for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . replace_table_token_12_th _ n/m—not meaningful . long term acute care segment . we operated 100 ltchs at december 31 , 2017 , compared to 103 ltchs at december 31 , 2016 . while our bed counts , admissions , and patient days decreased during the year ended december 31 , 2017 due to a decline in the number of hospitals we operated , our revenue per patient day and occupancy rate improved . since fully transitioning to operating under the new medicare patient criteria regulations , our ltchs have experienced improvements in income from operations and adjusted ebitda as a result of increases in net revenue per patient day and lower relative operating expenses . our long term acute care segment contributed to increases in consolidated income from operations of $ 26.2 million and adjusted ebitda of $ 28.1 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . our adjusted ebitda margin improved to 14.4 % for the year ended december 31 , 2017 , compared to 12.6 % for the year ended december 31 , 2016 . 50 inpatient rehabilitation segment . we operated 24 irfs at december 31 , 2017 , compared to 20 irfs at december 31 , 2016 . our admissions , patient days , net revenue per patient day , and occupancy rate increased during the year ended december 31 , 2017 . these increases are principally due to several of our new inpatient rehabilitation facilities which commenced operations during 2016 and 2017. our inpatient rehabilitation segment contributed to increases in our consolidated net operating revenues of $ 127.5 million , income from operations of $ 25.7 million , and adjusted ebitda of $ 33.1 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 . our adjusted ebitda margin improved to 14.3 % for the year ended december 31 , 2017 , compared to 11.3 % for the year ended december 31 , 2016 . outpatient rehabilitation segment . we operated 1,616 clinics at december 31 , 2017 , compared to 1,611 clinics at december 31 , 2016 . we acquired physiotherapy on march 4 , 2016 , and sold our contract therapy business on march 31 , 2016 , which affects our year-to-year comparisons as of the date for each of these events . our visits and net revenue per visit increased during the year ended december 31 , 2017 , resulting in increases of $ 25.5 million in our consolidated net operating revenues compared to the year ended december 31 , 2016 . our relative operating expenses also increased for the year ended december 31 , 2017 compared to the year ended december 31 , 2016 , resulting in nominal increases in income from operations and adjusted ebitda during the year ended december 31 , 2017 . our adjusted ebitda margin was 13.0 % for both the years ended december 31 , 2017 and december 31 , 2016 . concentra segment . we operated 312 centers at december 31 , 2017 , compared to 300 centers at december 31 , 2016 . visits in our centers increased during the year ended december 31 , 2017 , which contributed to increases in our consolidated net operating revenues of $ 33.4 million , and our relative operating expenses also improved . this resulted in increases to our consolidated income from operations of $ 10.3 million and adjusted ebitda of $ 14.6 million for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016. our adjusted ebitda margin improved to 15.2 % for the year ended december 31 , 2017 , compared to 14.3 % for the year ended december 31 , 2016 . our consolidated net income increased $ 95.4 million , or 76.1 % , to $ 220.6 million for the year ended december 31 , 2017 , compared to $ 125.3 million for the year ended december 31 , 2016 . the increase in our net income is principally due to an increase in income from operations for the year ended december 31 , 2017 , compared to the year ended december 31 , 2016 and the recognition of an income tax benefit for the year ended december 31 , 2017 . story_separator_special_tag the standard federal rate was set at $ 42,476 , an increase from the standard federal rate applicable during fiscal year 2016 of $ 41,763. the update to the standard federal rate for fiscal year 2017 included a market basket increase of 2.8 % , less a productivity adjustment of 0.3 % , and less a reduction of 0.75 % mandated by the aca . the fixed‑loss amount for high cost outlier cases paid under ltch‑pps was set at $ 21,943 , an increase from the fixed‑loss amount in the 2016 fiscal year of $ 16,423. the fixed‑loss amount for high cost outlier cases paid under the site‑neutral payment rate was set at $ 23,573 , an increase from the fixed‑loss amount in the 2016 fiscal year of $ 22,538. fiscal year 2018 . on august 14 , 2017 , cms published the final rule updating policies and payment rates for the ltch-pps for fiscal year 2018 ( affecting discharges and cost reporting periods beginning on or after october 1 , 2017 through september 30 , 2018 ) . certain errors in the final rule were corrected in a final rule published october 4 , 2017. the standard federal rate was set at $ 41,415 , a decrease from the standard federal rate applicable during fiscal year 2017 of $ 42,476. the update to the standard federal rate for fiscal year 2018 included a market basket increase of 2.7 % , less a productivity adjustment of 0.6 % , and less a reduction of 0.75 % mandated by the aca . the update to the standard federal rate for fiscal year 2018 is impacted further by the medicare access and chip reauthorization act of 2015 , which limits the update for fiscal year 2018 to 1.0 % . the fixed-loss amount for high cost outlier cases paid under ltch-pps was set at $ 27,381 , an increase from the fixed-loss amount in the 2017 fiscal year of $ 21,943. the fixed-loss amount for high cost outlier cases paid under the site-neutral payment rate was set at $ 26,537 , an increase from the fixed-loss amount in the 2017 fiscal year of $ 23,573 . 56 patient criteria the bba of 2013 , enacted december 26 , 2013 , establishes a dual‑rate ltch-pps for medicare patients discharged from an ltch . specifically , for medicare patients discharged in cost reporting periods beginning on or after october 1 , 2015 , ltchs will be reimbursed at the ltch-pps standard federal payment rate only if , immediately preceding the patient 's ltch admission , the patient was discharged from a “ subsection ( d ) hospital ” ( generally , a short‑term acute care hospital paid under ipps ) and either the patient 's stay included at least three days in an intensive care unit ( icu ) or coronary care unit ( ccu ) at the subsection ( d ) hospital , or the patient was assigned to an ms-ltc-drg for cases receiving at least 96 hours of ventilator services in the ltch . in addition , to be paid at the ltch-pps standard federal payment rate , the patient 's discharge from the ltch may not include a principal diagnosis relating to psychiatric or rehabilitation services . for any medicare patient who does not meet these criteria , the ltch will be paid a lower “ site neutral ” payment rate , which will be the lower of : ( i ) the ipps comparable per diem payment rate capped at the ms-drg payment rate plus any outlier payments ; or ( ii ) 100 percent of the estimated costs for services . the site neutral payment rate for those patients not paid at the ltch-pps standard federal payment rate is subject to a transition period . during the transition period ( applicable to hospital cost reporting periods beginning on or after october 1 , 2015 through september 30 , 2019 ) , a blended rate will be paid for medicare patients not meeting the new criteria that is equal to 50 % of the site neutral payment rate amount and 50 % of the standard federal payment rate amount . for discharges in cost reporting periods beginning on or after october 1 , 2019 , only the site neutral payment rate will apply for medicare patients not meeting the new criteria . for hospital cost reporting periods beginning on or after october 1 , 2017 through september 30 , 2026 , the ipps comparable per diem payment amount ( including any applicable outlier payment ) used to determine the site neutral payment rate will be reduced by 4.6 % after any annual payment rate update . in addition , for cost reporting periods beginning on or after october 1 , 2019 , qualifying discharges from an ltch will continue to be paid at the ltch-pps standard federal payment rate , unless the number of discharges for which payment is made under the site‑neutral payment rate is greater than 50 % of the total number of discharges from the ltch for that period . if the number of discharges for which payment is made under the site‑neutral payment rate is greater than 50 % , then beginning in the next cost reporting period all discharges from the ltch will be reimbursed at the site‑neutral payment rate . the bba of 2013 requires cms to establish a process for an ltch subject to only the site‑neutral payment rate to be reinstated for payment under the dual-rate ltch‑pps . payment adjustments , including the interrupted stay policy and the 25 percent rule ( discussed below ) , apply to ltch discharges regardless of whether the case is paid at the standard federal payment rate or the site‑neutral payment rate . however , short stay outlier payment adjustments do not apply to cases paid at the site‑neutral payment rate . cms calculates the annual recalibration of the ms-ltc-drg relative payment weighting factors using only

