Table 1.

Numbers of rating scores per hospital type and period.

Hospitals and period		General acute care hospital		Teaching hospital		Academic hospital		Total
		N hospitals	N ratings	N hospitals	N ratings	N hospitals	N ratings	N hospitals	N ratings
Control group hospitals		16	17,569	8	17,926	4	3967	28	39,462
Intensified supervision hospitals		4		2		1		7
	Period before 1 year before intensified supervision		499		161		81		741
	1 year before intensified supervision		303		165		82		550
	During intensified supervision		285		106		53		444
	1 year after intensified supervision		272		313		94		679
	Period after 1 year after intensified supervision		604		1144		232		1980
Total		20	19,532	10	19,815	5	4509	35	43,856