Table 3 School injuries cluster analysis results
1-st level | Overall | Cluster 1 (N = 3414) | Cluster 2 (N = 3210) | Cluster 3 (N = 1523) | Cluster 4 (N = 1865) | Cluster 5 (N = 843) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
2-nd level | Cluster 1.1 | Cluster 1.2 | Cluster 2.1 | Cluster 2.2 | Cluster 3.1 | Cluster 3.2 | Cluster 4.1 | Cluster 4.2 | Cluster 5.1 | Cluster 5.2 | |
N. of cases | 10855 | 900 | 2514 | 2055 | 1155 | 1136 | 387 | 713 | 1152 | 477 | 366 |
Age group | 8.924 | 8.393 | 9.155 | 9.152 | 8.595 | 8.595 | 9.56 | 9.485 | 8.518 | 8.724 | 9.203 |
Gender | |||||||||||
Boy | 7521 (69.3%) | 247 (27.4%) | 2115 (84.1%) | 1452 (70.7%) | 780 (67.5%) | 965 (84.9%) | 100 (25.8%) | 486 (68.2%) | 810 (70.3%) | 318 (66.7%) | 248 (67.8%) |
Girl | 3334 (30.7%) | 653 (72.6%) | 399 (15.9%) | 603 (29.3%) | 375 (32.5%) | 171 (15.1%) | 287 (74.2%) | 227 (31.8%) | 342 (29.7%) | 159 (33.3%) | 118 (32.2%) |
Place event | |||||||||||
Classroom | 1662 (15.3%) | 321 (35.7%) | 180 (7.2%) | 263 (12.8%) | 239 (20.7%) | 158 (13.9%) | 60 (15.5%) | 118 (16.5%) | 176 (15.3%) | 59 (12.4%) | 88 (24%) |
Corridor | 851 (7.8%) | 107 (11.9%) | 179 (7.1%) | 149 (7.3%) | 79 (6.8%) | 86 (7.6%) | 38 (9.8%) | 46 (6.5%) | 101 (8.8%) | 40 (8.4%) | 26 (7.1%) |
Sportsground | 1341 (12.4%) | 55 (6.1%) | 341 (13.6%) | 318 (15.5%) | 77 (6.7%) | 174 (15.3%) | 33 (8.5%) | 91 (12.8%) | 146 (12.7%) | 68 (14.3%) | 38 (10.4%) |
Sports hall | 390 (3.6%) | 27 (3%) | 100 (4%) | 84 (4.1%) | 39 (3.4%) | 41 (3.6%) | 24 (6.2%) | 25 (3.5%) | 24 (2.1%) | 7 (1.5%) | 19 (5.2%) |
Stairs | 292 (2.7%) | 49 (5.4%) | 53 (2.1%) | 41 (2%) | 39 (3.4%) | 18 (1.6%) | 20 (5.2%) | 17 (2.4%) | 33 (2.9%) | 12 (2.5%) | 10 (2.7%) |
Yard | 4216 (38.8%) | 163 (18.1%) | 1183 (47.1%) | 1113 (54.2%) | 139 (12%) | 475 (41.8%) | 130 (33.6%) | 89 (12.5%) | 613 (53.2%) | 275 (57.7%) | 36 (9.8%) |
Otherwise | 2103 (19.3%) | 178 (19.7%) | 478 (19%) | 87 (4.2%) | 543 (47.1%) | 184 (16.2%) | 82 (21.2%) | 327 (45.8%) | 59 (5.1%) | 16 (3.3%) | 149 (40.7%) |
Event term | |||||||||||
Before-after school | 284 (2.6%) | 36 (4%) | 68 (2.7%) | 52 (2.5%) | 31 (2.7%) | 23 (2%) | 10 (2.6%) | 14 (2%) | 30 (2.6%) | 12 (2.5%) | 8 (2.2%) |
Break | 5146 (47.4%) | 365 (40.6%) | 1263 (50.2%) | 1374 (66.9%) | 112 (9.7%) | 574 (50.5%) | 182 (47%) | 47 (6.6%) | 877 (76.1%) | 325 (68.1%) | 27 (7.4%) |
Lesson | 1479 (13.6%) | 157 (17.4%) | 262 (10.4%) | 284 (13.8%) | 183 (15.8%) | 148 (13%) | 64 (16.5%) | 126 (17.7%) | 129 (11.2%) | 59 (12.4%) | 67 (18.3%) |
Sports class | 330 (3%) | 23 (2.6%) | 89 (3.5%) | 66 (3.2%) | 18 (1.6%) | 30 (2.6%) | 14 (3.6%) | 34 (4.8%) | 27 (2.3%) | 21 (4.4%) | 8 (2.2%) |
Otherwise | 3616 (33.3%) | 319 (35.4%) | 832 (33.1%) | 279 (13.6%) | 811 (70.2%) | 361 (31.8%) | 117 (30.2%) | 492 (69%) | 89 (7.7%) | 28 (5.9%) | 256 (69.9%) |
Anatomic place | |||||||||||
Extremities | 4220 (38.9%) | 381 (42.4%) | 1003 (39.9%) | 806 (39.3%) | 412 (35.6%) | 260 (22.9%) | 290 (74.9%) | 324 (45.4%) | 384 (33.3%) | 202 (42.3%) | 158 (43.2%) |
Head | 5853 (53.9%) | 471 (52.3%) | 1322 (52.6%) | 1076 (52.4%) | 656 (56.8%) | 805 (70.9%) | 69 (17.8%) | 338 (47.4%) | 694 (60.2%) | 247 (51.8%) | 175 (47.8%) |
Other | 782 (7.2%) | 48 (5.3%) | 189 (7.5%) | 173 (8.4%) | 87 (7.5%) | 71 (6.3%) | 28 (7.2%) | 51 (7.2%) | 74 (6.4%) | 28 (5.9%) | 33 (9%) |
Injury cause | |||||||||||
Game | 4819 (44.4%) | 96 (10.7%) | 1373 (54.6%) | 1112 (54.1%) | 302 (26.1%) | 650 (57.2%) | 92 (23.8%) | 339 (47.5%) | 488 (42.4%) | 269 (56.4%) | 98 (26.8%) |
Falling from height | 354 (3.3%) | 39 (4.3%) | 75 (3%) | 75 (3.6%) | 42 (3.6%) | 26 (2.3%) | 10 (2.6%) | 22 (3.1%) | 38 (3.3%) | 17 (3.6%) | 10 (2.7%) |
Slipping | 2534 (23.3%) | 448 (49.8%) | 380 (15.1%) | 230 (11.2%) | 498 (43.1%) | 173 (15.2%) | 193 (49.9%) | 167 (23.4%) | 244 (21.2%) | 98 (20.5%) | 103 (28.1%) |
Violence | 579 (5.3%) | 49 (5.4%) | 118 (4.7%) | 103 (5%) | 67 (5.8%) | 71 (6.3%) | 8 (2.1%) | 59 (8.3%) | 67 (5.8%) | 18 (3.8%) | 19 (5.2%) |
Otherwise | 2569 (23.7%) | 268 (29.8%) | 568 (22.6%) | 535 (26%) | 246 (21.3%) | 216 (19.1%) | 84 (21.8%) | 126 (17.6%) | 315 (27.2%) | 75 (15.7%) | 136 (37.1%) |
Injury type | |||||||||||
Medium/deep incision | 52 (0.4%) | 4 (0.4%) | 11 (0.5%) | 5 (0.2%) | 9 (0.8%) | 11 (0.9%) | 2 (0.5%) | 1 (0.1%) | 5 (0.5%) | 3 (0.6%) | 1 (0.3%) |
Superficial incision | 1433 (13.2%) | 146 (16.2%) | 278 (11.1%) | 235 (11.4%) | 175 (15.2%) | 192 (16.9%) | 32 (8.3%) | 88 (12.3%) | 148 (12.8%) | 79 (16.6%) | 60 (16.4%) |
Rubbing tear | 707 (6.5%) | 54 (6%) | 179 (7.1%) | 143 (7%) | 75 (6.5%) | 74 (6.5%) | 18 (4.7%) | 40 (5.6%) | 83 (7.2%) | 23 (4.8%) | 18 (4.9%) |
Trauma | 7368 (67.9%) | 54 (6%) | 1784 (71%) | 1419 (69%) | 835 (72.3%) | 776 (68.3%) | 293 (75.7%) | 537 (75.3%) | 769 (66.8%) | 333 (69.9%) | 245 (66.9%) |
otherwise | 1295 (12%) | 79 (8.7%) | 262 (10.3%) | 253 (12.3%) | 61 (5.3%) | 83 (7.3%) | 41 (10.7%) | 46 (6.5%) | 146 (12.7%) | 39 (8.2%) | 42 (11.5%) |