Diversified Healthcare Trust (DHC) 10-Q 2005 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,
	2005			2004			2004			2003			2002			2001			2000
Earnings:
Net income	$	28,889		$	27,310		$	56,742		$	45,874		$	50,184		$	17,018		$	58,437
Fixed charges	22,675			20,625			41,836			37,899			30,210			7,334			15,366
Adjusted earnings	$	51,564		$	47,935		$	98,578		$	83,773		$	80,394		$	24,352		$	73,803
Fixed charges:
Interest expense	$	22,675		$	20,625		$	41,836		$	37,899		$	30,210		$	7,334		$	15,366
Ratio of earnings to fixed charges	2.3		x	2.3		x	2.4		x	2.2		x	2.7		x	3.3		x	4.8		x