Three months ended
September 30,

Nine months ended
September 30,

(amounts in thousands)

2012

2011

2012

2011

Basic and Diluted:

Net income attributable to UHS

$

71,817

$

85,054

$

307,985

$

302,896

Less: Net income attributable to unvested restricted share grants

(85

)

(165

)

(379

)

(440

)

Net income attributable to UHS—basic and diluted

$

71,732

$

84,889

$

307,606

$

302,456

Weighted average number of common shares—basic

96,817

97,397

96,701

97,447

Net effect of dilutive stock options and grants based on the treasury stock method

794

1,201

1,010

1,461

Weighted average number of common shares and equivalents—diluted

97,611

98,598

97,711

98,908

Earnings per basic share attributable to UHS:

$

0.74

$

0.87

$

3.18

$

3.10

Earnings per diluted share attributable to UHS:

$

0.73

$

0.86

$

3.15

$

3.06