Diversified Healthcare Trust (DHC) 10-Q 2006 Q2 Quarterly report

Exhibit 12.1

SENIOR HOUSING PROPERTIES TRUST

Computation of Ratio of Earnings to Fixed Charges
(dollars in thousands)

	Six Months Ended June 30,				Year Ended December 31,
	2006		2005		2005		2004		2003		2002		2001
Earnings:
Net income	$	28,353	$	28,889	$	58,705	$	56,742	$	45,874	$	50,184	$	17,018
Fixed charges	22,917		22,675		46,633		41,836		37,899		30,210		7,334
Adjusted earnings	$	51,270	$	51,564	$	105,338	$	98,578	$	83,773	$	80,394	$	24,352
Fixed charges:
Interest expense	$	22,917	$	22,675	$	46,633	$	41,836	$	37,899	$	30,210	$	7,334
Ratio of earnings to fixed charges	2.2x		2.3x		2.3x		2.4x		2.2x		2.7x		3.3x