Exhibit 12 COLUMBIA/HCA HEALTHCARE CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the quarters and six months ended June 30, 1994 and 1993 (Dollars in millions) Quarter Six Months 1994 1993 1994 1993 Earnings: Income from continuing operations before minority interests and income taxes .... $ 343 $ 273 $ 579 $ 609 Fixed charges, exclusive of capitalized interest ...................................... 74 102 154 205 $ 417 $ 375 $ 733 $ 814 Fixed Charges: Interest charged to expense ..................... $ 56 $ 85 $ 120 $ 170 One-third of rent expense and amortization of deferred loan costs (a) .................... 18 17 34 35 Fixed charges, exclusive of capitalized interest ...................................... 74 102 154 205 Capitalized interest ............................ 3 4 6 6 $ 77 $ 106 $ 160 $ 211 Ratio of earnings to fixed charges .............. 5.39 3.56 4.58 3.86 (a) One-third of rent expense is considered representative of the underlying interest.