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Table 1 Characteristics of super-utilizers stratified by the number of hospitals encountered in 1 year

From: Super fragmented: a nationally representative cross-sectional study exploring the fragmentation of inpatient care among super-utilizers

Number of Different Hospitals 1 2 3 4 5 6 7 8 p
N (%) 70,111 63,239 24,527 6615 1812 702 347 162  
Age, years (%) 64.73 (18.18) 62.61 (17.9) 58.81 (17.94) 53.41 (17.08) 49.3 (14.93) 46.2 (12.53) 45.46 (11.78) 45.55 (12.84) < 0.001
Female, n (%) 37,299 (53.2%) 32,115 (50.78%) 11,672 (47.59%) 2754 (41.63%) 612 (33.77%) 210 (29.91%) 82 (23.63%) 32 (19.75%) < 0.001
White, n (%) 42,167 (60.14%) 34,989 (55.33%) 11,782 (48.04%) 2621 (39.62%) 603 (33.28%) 194 (27.64%) 76 (21.9%) 28 (17.28%) < 0.001
Black, n (%) 14,083 (20.09%) 12,922 (20.43%) 5502 (22.43%) 1646 (24.88%) 475 (26.21%) 176 (25.07%) 92 (26.51%) 49 (30.25%) < 0.001
Hispanic, n (%) 8155 (11.63%) 8037 (12.71%) 3565 (14.54%) 1084 (16.39%) 311 (17.16%) 131 (18.66%) 60 (17.29%) 22 (13.58%) < 0.001
Other/Missing, n (%) 5706 (8.14%) 7291 (11.53%) 3678 (15%) 1264 (19.11%) 423 (23.34%) 201 (28.63%) 119 (34.29%) 63 (38.89%) < 0.001
Medicare, n (%) 45,129 (64.37%) 38,955 (61.6%) 13,855 (56.49%) 3061 (46.27%) 742 (40.93%) 211 (30.06%) 94 (27.05%) 45 (27.92%) < 0.001
Medicaid, n (%) 11,159 (15.92%) 11,545 (18.26%) 5736 (23.38%) 2173 (32.86%) 759 (41.88%) 368 (52.39%) 201 (57.93%) 94 (57.77%) < 0.001
Private, n (%) 9283 (13.24%) 8417 (13.31%) 3058 (12.47%) 697 (10.53%) 143 (7.89%) 48 (6.81%) 17 (5.02%) 6 (3.54%) < 0.001
Uninsured, n(%) 2186 (3.12%) 2197 (3.47%) 1044 (4.26%) 418 (6.32%) 107 (5.92%) 48 (6.77%) 25 (7.12%) 10 (6.26%) < 0.001
Other/Missing, n(%) 2354 (3.4%) 2125 (3.4%) 834 (3.4%) 266 (4.0%) 61 (3.4%) 27 (3.8%) 10 (2.9%) 7 (4.3%) 0.028
Zip Income Quartile 1 n (%) 23,007 (32.82%) 20,164 (31.89%) 7328 (29.88%) 1818 (27.48%) 464 (25.61%) 148 (21.08%) 73 (21.04%) 34 (20.99%) < 0.001
Zip Income Quartile 2 n (%) 18,899 (26.96%) 17,769 (28.1%) 6800 (27.72%) 1721 (26.02%) 433 (23.9%) 158 (22.51%) 59 (17%) 40 (24.69%) < 0.001
Zip Income Quartile 4 n (%) 15,048 (21.46%) 13,949 (22.06%) 5759 (23.48%) 1656 (25.03%) 449 (24.78%) 174 (24.79%) 81 (23.34%) 33 (20.37%) < 0.001
Zip Income Quartile 4 n (%) 11,495 (16.4%) 10,679 (16.89%) 4503 (18.36%) 1397 (21.12%) 461 (25.44%) 221 (31.48%) 134 (38.62%) 55 (33.95%) < 0.001
Large Metropolitan (> 1 million), n (%) 41,252 (58.84%) 38,503 (60.88%) 16,102 (65.65%) 4703 (71.1%) 1376 (75.94%) 559 (79.63%) 287 (82.71%) 130 (80.25%) < 0.001
Small Metropolitan (<  1 million), n (%) 21,070 (30.05%) 16,363 (25.87%) 5091 (20.76%) 1134 (17.14%) 265 (14.62%) 97 (13.82%) 41 (11.82%) 27 (16.67%) < 0.001
Micropolitan, n (%) 4870 (6.95%) 4889 (7.73%) 1803 (7.35%) 403 (6.09%) 92 (5.08%) 28 (3.99%) 12 (3.46%) 3 (1.85%) < 0.001
Rural, n (%) 2793 (3.98%) 3438 (5.44%) 1522 (6.21%) 371 (5.61%) 78 (4.3%) 18 (2.56%) 7 (2.02%) 2 (1.23%) < 0.001
Ever Uninsured n (%) 3707 (5.29%) 4457 (7.05%) 2319 (9.45%) 948 (14.33%) 295 (16.28%) 134 (19.09%) 73 (21.04%) 43 (26.54%) < 0.001
Ever Homeless n (%) 1311 (1.87%) 2843 (4.5%) 2237 (9.12%) 1210 (18.29%) 553 (30.52%) 297 (42.31%) 192 (55.33%) 102 (62.96%) < 0.001