Table 1.

Incidence and Prevalence Rates of PE in Hospitalized Sickle Cell Disease Patients in Pennsylvania

Year	2001		2002		2003		2004		2005		2006
Status	SCD	Non-SCD	SCD	Non-SCD	SCD	Non-SCD	SCD	Non-SCD	SCD	Non-SCD	SCD	Non-SCD
PE Cases ≤ 50 yr	12	1592	9	1699	14	2123	14	2105	11	2161	21	2397
PA Population ≤ 50yr	4000*	40,753,440	4000	40,833,506	4000	40,926,802	4000	41,015,223	4000	41,096,969	4000	41,255,577
PA Incidence (%)	0.30%	0.0039%	0.22%	0.0041%	0.35%	0.0052%	0.35%	0.0051%	0.27	0.0053%	0.52%	0.0058%
PE Cases	17	8,843	16	9,825	20	10,949	24	11,104	17	12,107	25	13,612
PA Discharges	3,310	1,809,588†	3,302	1,826,750	3,571	1,858,641	3,607	1,867,018	3,603	1,885,348	3,454	1,887,420
PE Prevalence (%)	0.51%	0.49%	0.48%	0.54%	0.56%	0.59%	0.67%	0.59%	0.47%	0.64%	0.72%	0.72%
PE AA cases	15	869	16	1152	20	1970	24	1362	15	1492	23	1697
PA Discharges (AA)	2911	217,151□	3150	219,210	3396	223,037	3410	224,042	3398	226,242	3204	226,490
PE Prevalence (%)	0.52%	0.40%	0.51%	0.53%	0.59%	0.57%	0.70%	0.61%	0.44%	0.66%	0.72%	0.75%

PE is pulmonary embolism; SCD is sickle cell disease. PA is Pennsylvania.

^*SCD in PA population estimates are from the PA Department of Health [26] and from U.S. state prevalence data by Hassell et al [27] (see text).

^†All non-SCD discharges were obtained from PHC4 website, http://www.phc4.org/countyprofiles/Search.aspx?CID=0 accessed July 20, 2011 [25].

^□PA discharges for non-SCD AA were approximated as 12% of all PA discharges [26].