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.