Exhibit 12.1 HEALTH AND RETIREMENT PROPERTIES TRUST COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in thousands, except ratio amounts) For the Years Ended December 31, ---------------------------------------------------------------------------------- 1997 1996 1995 1994 1993 ---------------------------------------------------------------------------------- Income before gain on sale of properties and extraordinary items $112,204 $77,164 $61,760 $57,878 $37,738 Fixed charges 38,564 23,279 26,218 10,096 6,529 Adjusted Earnings $150,768 $100,443 $87,978 $67,974 $44,267 ================ ================= ================ =============== ============= Fixed Charges: Interest expense $36,766 $22,545 $24,274 $8,965 $6,217 Amortization of deferred financing costs 1,798 734 1,944 1,131 312 Total Fixed Charges $38,564 $23,279 $26,218 $10,096 $6,529 ================ ================= ================ =============== ============= Ratio of Earnings to Fixed Charges 3.9x 4.3x 3.4x 6.7x 6.8x ================ ================= ================ =============== =============