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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Pediatr Blood Cancer. 2013 Jun 18;60(11):1753–1758. doi: 10.1002/pbc.24630

TABLE I.

Characteristics of Individuals With SCD Who Received a Blood Transfusion, Stratified by Study Year

1997
2000
2003
2006
2009
n (weighted %) n (weighted %) n (weighted %) n (weighted %) n (weighted %)
Age
 <1 39 (1.5) 67 (2.7) 83 (2.0) 161 (3.1) 226 (2.9)
 1–4 434 (18.8) 471 (16.6) 705 (16.6) 1,050 (19.8) 1,570 (20.6)
 5–12 971 (41.1) 1,261 (44.1) 1,846 (43.4) 2,058 (38.4) 3,056 (40.2)
 13–18 814 (38.6) 1,044 (37.6) 1,645 (37.9) 2,111 (38.7) 2,786 (36.3)
Gender
 Male 1,286 (55.0) 1,586 (55.9) 2,312 (54.5) 2,864 (53.5) 4,094 (53.7)
 Female 972 (45.0) 1,259 (44.1) 1,940 (45.5) 2,491 (46.5) 3,536 (46.3)
Race/ethnicity
 White 42 (1.5) 56 (2.0) 61 (1.5) 81 (1.5) 142 (1.8)
 Black 1,716 (74.1) 2,324 (82.8) 3,161 (73.9) 3,833 (71.2) 5,841 (76.2)
 Hispanic 196 (6.3) 168 (5.2) 258 (5.9) 338 (6.5) 414 (5.2)
 Other 74 (2.1) 73 (2.0) 94 (2.2) 112 (2.1) 193 (2.4)
 Unknown 230 (16.0) 224 (8.0) 729 (16.5) 1,040 (18.7) 1,061 (14.4)
Insurance type
 Private 640 (26.2) 832 (28.3) 1,198 (27.9) 1,355 (25.5) 1,971 (25.5)
 Public 1,573 (72.3) 1,935 (69.4) 3,007 (70.2) 3,903 (71.9) 5,439 (71.6)
 Other 44 (1.5) 70 (2.3) 83 (1.9) 141 (2.6) 231 (2.9)
Household income
 Quartile 1 1,010 (52.5) 590 (20.3) 1,861 (44.0) 2,499 (47.7) 3,519 (47.5)
 Quartile 2 407 (19.4) 944 (34.0) 1,112 (26.0) 1,190 (22.7) 1,723 (23.2)
 Quartile 3 295 (12.0) 623 (22.6) 818 (19.5) 912 (17.6) 1,315 (17.6)
 Quartile 4 460 (16.1) 639 (23.1) 444 (10.5) 619 (12.0) 888 (11.7)
Hospital bedsize
 Small 315 (14.5) 402 (16.6) 656 (16.7) 634 (13.1) 597 (10.1)
 Medium 701 (28.6) 688 (25.4) 1,094 (26.9) 981 (19.2) 1,151 (18.4)
 Large 1,242 (56.9) 1,708 (58.0) 2,433 (56.4) 3,583 (67.7) 4,605 (71.5)
Hospital region
 Northeast 980 (29.9) 851 (24.5) 909 (21.2) 1,193 (23.7) 1,868 (22.5)
 Midwest 117 (8.0) 53 (6.3) 667 (14.4) 1,060 (18.6) 1,504 (19.9)
 South 617 (45.4) 1,402 (51.6) 1,999 (48.3) 2,513 (46.3) 3,644 (49.3)
 West 544 (16.7) 539 (17.6) 728 (16.1) 638 (11.4) 637 (8.3)
Hospital type
 Not Children’s Hospital 946 (34.4) 899 (32.0) 1,327 (31.2) 1,360 (26.1) 1,566 (24.8)
 Children’s GH 352 (17.3) 641 (28.8) 1,057 (28.9) 1,184 (25.9) 1,397 (24.7)
 Children’s unit in GH 960 (48.3) 1,192 (39.2) 1,657 (39.9) 2,499 (48.0) 3,189 (50.5)
Hospital location
 Rural 38 (3.4) 82 (3.6) 109 (3.1) 115 (2.5) 118 (2.1)
 Urban 2,220 (96.6) 2,716 (96.4) 4,074 (96.9) 5,083 (97.5) 6,235 (97.9)
Teaching status
 Non-teaching 489 (23.6) 348 (13.0) 476 (11.3) 530 (9.9) 677 (10.9)
 Teaching 1,769 (76.4) 2,450 (87.0) 3,707 (88.7) 4,668 (90.1) 5,676 (89.1)
Elective surgery
 No 2,148 (94.5) 2,719 (95.8) 4,087 (95.8) 4,948 (96.1) 6,958 (95.7)
 Yes 110 (5.5) 126 (4.2) 172 (4.2) 185 (3.9) 290 (4.3)
Pneumonia/ACS
 No 2,103 (92.3) 2,707 (95.2) 3,980 (93.5) 4,917 (96.0) 6,846 (94.6)
 Yes 155 (7.7) 138 (4.8) 279 (6.5) 216 (4.0) 402 (5.4)
VOC
 No 1,212 (54.3) 1,458 (49.9) 2,210 (51.6) 1,809 (34.4) 2,842 (38.4)
 Yes 1,046 (45.7) 1,387 (50.1) 2,049 (48.4) 3,324 (65.6) 4,406 (61.6)

GH, general hospital.