TABLE 2.
Temporal Trends of Hospitalized Patients With Spinal Conditions and Treatment
| 2005 | 2008 | 2011 | 2014 | |||||
| Variables | N | % | N | % | N | % | N | % |
| Total weighted N | 1,370,599 | 1,875,053 | 2,339,687 | 1,997,471 | ||||
| Age group, y | ||||||||
| <30 | 92,266 | 6.7% | 110,617 | 5.9% | 128,983 | 5.5% | 114,620 | 5.7% |
| 30–39 | 121,507 | 8.9% | 147,748 | 7.9% | 177,903 | 7.6% | 142,350 | 7.1% |
| 40–49 | 231,918 | 16.9% | 287,322 | 15.3% | 331,696 | 14.2% | 248,020 | 12.4% |
| 50–59 | 253,208 | 18.5% | 371,294 | 19.8% | 495,390 | 21.2% | 429,655 | 21.5% |
| 60–69 | 225,864 | 16.5% | 352,183 | 18.8% | 474,238 | 20.3% | 434,730 | 21.8% |
| 70–79 | 239,558 | 17.5% | 317,560 | 16.9% | 391,295 | 16.7% | 353,165 | 17.7% |
| ≥80 | 206,279 | 15.1% | 288,330 | 15.4% | 340,181 | 14.5% | 274,930 | 13.8% |
| Sex | ||||||||
| Male | 598,783 | 43.7% | 822,914 | 43.9% | 1,044,519 | 44.6% | 909,371 | 45.5% |
| Female | 771,816 | 56.3% | 1,052,140 | 56.1% | 1,295,167 | 55.4% | 1,088,101 | 54.5% |
| Race | ||||||||
| Black | 119,303 | 8.7% | 177,837 | 9.5% | 263,788 | 11.3% | 232,145 | 11.6% |
| Hispanic | 84,594 | 6.2% | 113,351 | 6.0% | 163,519 | 7.0% | 142,815 | 7.1% |
| Asian or Pacific Islander | 16,460 | 1.2% | 28,379 | 1.5% | 29,520 | 1.3% | 30,360 | 1.5% |
| Native American/other | 37,053 | 2.7% | 56,449 | 3.0% | 61,294 | 2.6% | 60,405 | 3.0% |
| White | 1,113,188 | 81.2% | 1,499,038 | 79.9% | 1,821,566 | 77.9% | 1,531,746 | 76.7% |
| Median household income | ||||||||
| 0–25th percentile | 339,412 | 24.8% | 497,422 | 26.5% | 649,608 | 27.8% | 573,805 | 28.7% |
| 26th–50th percentile | 336,443 | 24.5% | 516,330 | 27.5% | 574,208 | 24.5% | 557,855 | 27.9% |
| 51st–75th percentile | 360,701 | 26.3% | 439,744 | 23.5% | 593,675 | 25.4% | 464,025 | 23.2% |
| 76th–100th percentile | 334,043 | 24.4% | 421,557 | 22.5% | 522,196 | 22.3% | 401,785 | 20.1% |
| Primary payer | ||||||||
| Medicare | 651,392 | 47.5% | 895,040 | 47.7% | 1,161,729 | 49.7% | 1,024,576 | 51.3% |
| Medicaid | 127,519 | 9.3% | 178,378 | 9.5% | 258,436 | 11.0% | 277,840 | 13.9% |
| Uninsured | 48,341 | 3.5% | 72,103 | 3.8% | 102,673 | 4.4% | 68,160 | 3.4% |
| Other | 75,705 | 5.5% | 98,995 | 5.3% | 115,567 | 4.9% | 82,920 | 4.2% |
| Private insurance | 467,642 | 34.1% | 630,537 | 33.6% | 701,281 | 30.0% | 543,976 | 27.2% |
| Number of comorbidities* | 1.80 | 1.53 | 2.20 | 1.72 | 2.48 | 1.83 | ||
| Severity of illness subclass | ||||||||
| APR-DRG 0,1, lowest | 508,773 | 37.1% | 587,229 | 31.3% | 636,322 | 27.2% | 714,735 | 35.8% |
| APR-DRG 2 | 543,601 | 39.7% | 756,688 | 40.4% | 955,673 | 40.8% | 748,565 | 37.5% |
| APR-DRG 3 | 232,031 | 16.9% | 396,032 | 21.1% | 567,157 | 24.2% | 424,950 | 21.3% |
| APR-DRG 4, highest | 86,194 | 6.3% | 135,105 | 7.2% | 180,534 | 7.7% | 109,220 | 5.5% |
| Opioid-use disorders | ||||||||
| Yes | 5632 | 0.4% | 46,738 | 2.5% | 77,396 | 3.3% | 70,090 | 3.5% |
| No | 27,351 | 2.0% | 1,828,316 | 97.5% | 2,262,291 | 96.7% | 1,927,381 | 96.5% |
| Cannabis-use disorders | ||||||||
| Yes | 9956 | 0.7% | 17,159 | 0.9% | 29,723 | 1.3% | 35,190 | 1.8% |
| No | 1,360,643 | 99.3% | 1,857,894 | 99.1% | 2,309,964 | 98.7% | 1,962,281 | 98.2% |
| Substance-use disorders | ||||||||
| Yes | 80,855 | 5.9% | 124,059 | 6.6% | 180,308 | 7.7% | 166,040 | 8.3% |
| No | 1,289,744 | 94.1% | 1,750,994 | 93.4% | 2,159,378 | 92.3% | 1,831,431 | 91.7% |
| Mental health conditions | ||||||||
| Yes | 275,212 | 20.1% | 469,148 | 25.0% | 665,156 | 28.4% | 615,555 | 30.8% |
| No | 1,095,387 | 79.9% | 1,405,906 | 75.0% | 1,674,531 | 71.6% | 1,381,916 | 69.2% |
| Hospital region | ||||||||
| Northeast | 320,150 | 23.4% | 407,343 | 21.7% | 450,217 | 19.2% | 371,145 | 18.6% |
| Midwest | 248,622 | 18.1% | 301,844 | 16.1% | 451,588 | 19.3% | 440,115 | 22.0% |
| South | 507,396 | 37.0% | 742,567 | 39.6% | 940,856 | 40.2% | 785,252 | 39.3% |
| West | 294,432 | 21.5% | 423,299 | 22.6% | 497,026 | 21.2% | 400,960 | 20.1% |
*Mean/SD.