Multivariate analyses of risk of student-related injury per 100 FTE
| Total student-related claims | Lost-time student-related claims | Medical-only student-related claims | |||||||
| Claims, n | FTE*, n | Rate ratio† (95% CI) | Claims, n | FTE‡, n | Rate ratio† (95% CI) | Claims, n | FTE*, n | Rate ratio† (95% CI) | |
| District location‡ | |||||||||
| Out-state (reference) | 735 | 70 835 | 1.00 (-) | 61 | 70 835 | 1.00 (-) | 674 | 70 835 | 1.00 (-) |
| Metro | 1367 | 98 784 | 1.54 (1.04 to 2.27) | 113 | 98 784 | 1.57 (0.92 to 2.69) | 1254 | 98 784 | 1.53 (1.03 to 2.26) |
| District type‡ | |||||||||
| Public (reference) | 1781 | 165 508 | 1.00 (-) | 144 | 165 508 | 1.00 (-) | 1637 | 165 508 | 1.00 (-) |
| Charter | 8 | 1323 | 0.50 (0.25 to 0.99) | 0 | . | . | 8 | 1323 | 0.54 (0.27 to 1.08) |
| Integration | 4 | 490 | 0.53 (0.44 to 0.65) | 0 | . | . | 4 | 490 | 0.59 (0.48 to 0.73) |
| Intermediate | 309 | 2297 | 7.03 (3.19 to 15.48) | 30 | 2297 | 9.48 (7.64 to 11.75) | 279 | 2297 | 7.05 (3.20 to 15.54) |
| Job classification‡ | |||||||||
| Clerical | 9 | 10 254 | 0.10 (0.05 to 0.20) | 2 | 10 254 | 0.39 (0.10 to 1.50) | 7 | 10 254 | 0.08 (0.04 to 0.17) |
| Custodial | 6 | 16 177 | 0.05 90.02 to 0.11) | 0 | . | . | 6 | 16 177 | 0.05 (0.02 to 0.11) |
| Licensed (reference) | 795 | 97 555 | 1.00 (-) | 49 | 97 555 | 1.00 (-) | 746 | 97 555 | 1.00 (-) |
| Nutrition | 6 | 6863 | 0.12 (0.05 to 0.26) | 1 | 6863 | 0.30 (0.04 to 2.34) | 5 | 6863 | 0.10 (0.04 to 0.24) |
| Other non-licensed staff | 66 | 9674 | 0.87 (0.65 to 1.16) | 4 | 9674 | 0.83 (0.31 to 2.21) | 62 | 9674 | 0.87 (0.64 to 1.17) |
| General education assistant | 86 | 5525 | 2.07 (1.40 to 3.07) | 6 | 5525 | 1.95 (0.80 to 4.76) | 80 | 5525 | 2.05 (1.36 to 3.09) |
| Special education assistant | 1112 | 19 760 | 6.00 (5.05 to 7.14) | 106 | 19 760 | 9.51 (6.25 to 14.48) | 1006 | 19 760 | 5.77 (4.81 to 6.93) |
| Transportation | 22 | 3811 | 0.78 (0.40 to 1.52) | 6 | 3811 | 3.30 (1.28 to 8.53) | 16 | 3811 | 0.58 (0.28 to 1.23) |
*Full-time equivalent (FTE)=per cent of full-time contract per MNDOE STAR Report.
†Adjusted for within-district correlation, months at-risk in the school year, district location, district type and calendar year.
‡Obtained from the Minnesota Department of Education (MNDOE) Staff Automated Reporting (STAR) Report, 1 July 2009 through 30 June 2015.