EXHIBIT 12 COLUMBIA/HCA HEALTHCARE CORPORATION SUPPLEMENTAL COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (UNAUDITED) (DOLLARS IN MILLIONS) YEARS ENDED DECEMBER 31, ---------------------------------- 1994 1993 1992 1991 1990 ------ ------ ------ ------ ------ Earnings: Income from continuing operations before minority interests and income taxes...... $1,580 $1,230 $ 652 $ 400 $ 608 Fixed charges, exclusive of capitalized interest................................. 491 497 584 817 904 ------ ------ ------ ------ ------ $2,071 $1,727 $1,236 $1,217 $1,512 ====== ====== ====== ====== ====== Fixed charges: Interest charged to expense............... $ 387 $ 415 $ 506 $ 748 $ 852 One-third of rent expense and amortization of deferred loan costs (a)............... 104 82 78 69 52 ------ ------ ------ ------ ------ Fixed charges, exclusive of capitalized interest................................. 491 497 584 817 904 Capitalized interest...................... 15 22 18 12 11 ------ ------ ------ ------ ------ $ 506 $ 519 $ 602 $ 829 $ 915 ====== ====== ====== ====== ====== Ratio of earnings to fixed charges.......... 4.09 3.33 2.05 1.47 1.65 ====== ====== ====== ====== ====== - -------- (a) One-third of rent expense is considered representative of the underlying interest.