EXHIBIT 12.1 LABORATORY CORPORATION OF AMERICA HOLDINGS STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS (LOSS) TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS (DOLLARS IN MILLIONS) PROFORMA YEAR ENDED YEAR ENDED DECEMBER 31, DECEMBER --------------------------------- 31, 1992 1993 1994 1995 1996 1996 ----- ------ ------ ----- ------- ---------- Earnings (loss): Earnings (loss before provision for income taxes and extraordinary item.............. $62.1 $191.1 $ 55.4 $ 3.1 $(188.3) $(176.0) Add: Fixed Charges................ Interest expense (gross)......... 4.2 10.9 34.5 65.5 71.7 59.4 Interest factor in rents......... 9.0 10.0 11.5 20.1 23.5 23.5 ----- ------ ------ ----- ------- ------- Earnings (loss) as adjusted...... $75.3 $212.0 $101.4 $88.7 $ (93.1) $ (93.1) ===== ====== ====== ===== ======= ======= Preferred dividend requirements.. $ -- $ -- $ -- $ -- $ -- $ 103.4 Ratio of earnings (loss) before provision for income taxes to net earnings (loss)............. -- -- -- -- -- 120% ----- ------ ------ ----- ------- ------- Preferred dividend factor on a pre-tax basis................... -- -- -- -- -- 124.5 Fixed Charges Interest expense (gross)........ 4.2 10.9 34.5 65.5 71.7 59.4 Interest factor in rents........ 9.0 10.0 11.5 20.1 23.5 23.5 ----- ------ ------ ----- ------- ------- Combined fixed charges and preferred dividends........... 13.2 20.9 46.0 85.6 95.2 207.4 ===== ====== ====== ===== ======= ======= Ratio of earnings to combined fixed charges and preferred dividends........................ 5.71 10.16 2.20 1.04 NM NM Amount by which earnings are insufficient to cover combined fixed charges and preferred dividends........................ $(188.3) $(300.5) ======= =======