Exhibit 12 COLUMBIA/HCA HEALTHCARE CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For the quarters ended March 31, 1994 and 1993 (Dollars in millions) 1994 1993 Earnings: Income from continuing operations before minority interests and income taxes .... $ 236 $ 336 Fixed charges, exclusive of capitalized interest ...................................... 80 103 $ 316 $ 439 Fixed Charges: Interest charged to expense ..................... $ 64 $ 85 One-third of rent expense and amortization of deferred loan costs (a) .................... 16 18 Fixed charges, exclusive of capitalized interest ...................................... 80 103 Capitalized interest ............................ 3 2 $ 83 $ 105 Ratio of earnings to fixed charges .............. 3.82 4.17 (a) One-third of rent expense is considered representative of the underlying interest.