Exhibit 12 VANGUARD HEALTH SYSTEMS, INC. Computation of Ratio of Earnings to Fixed Charges (dollars in thousands) Pro Forma Three Months Pro Forma Three Months Ended Year Ended Ended For the Year Ended June 30, September 30, June 30, September 30, 1998 1999 2000 2001 2000 2001 2001 2001 -------- -------- -------- -------- -------- -------- -------- -------- Income from continuing operations before income taxes......................... $ (2,713) $(6,421) $ (181) $10,671 $ 202 $ 2,491 $(5,141) $ 1,205 Equity method (income) loss...... 68 (240) 74 (165) 9 (107) (165) (107) Portion of rents representative of interest................... 105 560 1,709 3,058 761 780 3,622 780 Interest, including amortization of debt issuance expense...... 330 4,395 9,235 17,491 5,017 7,042 31,111 8,328 -------- ------- ------- ------- ------ ------- ------- ------- Earnings................... $ (2,210) $(1,706) $10,837 $31,055 $5,989 $10,206 $29,427 $10,206 ======== ======= ======= ======= ====== ======= ======= ======= Portion of rents representative of interest................... $ 105 $ 560 $ 1,709 $ 3,058 $ 761 $ 780 $ 3,622 $ 780 Interest including amortization of debt issuance expense...... 330 4,395 9,235 17,491 5,017 7,042 31,111 8,328 -------- ------- ------- ------- ------ ------- ------- ------- Fixed Charges................. $ 435 $ 4,955 $10,944 $20,549 $5,778 $ 7,822 $34,733 $ 9,108 ======== ======= ======= ======= ====== ======= ======= ======= Ratio of earnings to fixed charges.................... - - - 1.51 1.04 1.30 - 1.12 Amount by which earnings are inadequate to cover fixed charges....................... $ 2,645 $ 6,661 $ 107 $ - $ - $ - $ 5,306 $ -