TABLE 2.

SSTI Hospitalizations and I&Ds: 1997, 2000, 2003, 2006, and 2009

	1997 N (wt)	Weight, %	2000 N (wt)	Weight, %	2003 N (wt)	Weight, %	2006 N (wt)	Weight, %	2009 N (wt)	Weight, %	P
No. of hospitalizations
All US hospitalizations	1 905 797 (6 657 325)	—	2 516 833 (7 291 039)	—	2 984 129 (7 409 162)	—	3 131 324 (7 558 812)	—	3 407 146 (7 370 203)	—
SSTI	13 225 (30 653)	0.46	17 367 (33 155)	0.45	26 923 (45 752)	0.62	42 854 (70 471)	0.93	49 834 (74 443)	1.01	<.01
Receiving I&D	2779 (6284)	20.5	4122 (7764)	23.4	8298 (14 233)	31.1	16 786 (27 640)	39.2	21 544 (32 431)	43.6	<.01
Asthma	86 698 (200 699)	3.01	84 479 (158 820)	2.17	102 101(173 392)	2.34	86 968 (143 854)	1.90	97 117 (143 641)	1.95	<.01
Pneumonia	77 936 (197 584)	2.97	85 476 (170 806)	2.34	101 141(170 860)	2.31	103 853(168 864)	2.23	118 317(176 145)	2.39	<.01

wt, weighted.