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Table 1 Patient characteristics. Distribution of sex, age, injury mechanism, type of trauma, and location

From: Epidemiology, classification, treatment, and mortality of adult femoral neck and basicervical fractures: an observational study of 40,049 fractures from the Swedish Fracture Register

  Undisplaced or minimally displaced FNF Displaced FNF Basicervical FNF All patients
(n = 10,033) (n = 25,383) (n = 4633) (n = 40,049)
Age * 78.5 (± 12.0) 81.1(± 10.4) 80.2 (± 12.0) 80.3 (± 11.0)
Female 6,614 (65.9%) 16,290 (64.2%) 2663 (57.5%) 25,567 (63.8%)
Mechanism
 Bicycle 92 (2.0%) 481 (1.9%) 92 (2.0%) 872 (2.2%)
 Fall from height 288 (2.9%) 687 (2.7%) 128 (2.8%) 1103 (2.8%)
 Fall same level 7857 (78.3%) 20,521 (80.8%) 3639 (78.5%) 32,017 (79.9%)
 Stress fracture 190 (1.9%) 277 (1.1%) 74 (1.6%) 541 (1.4%)
 Other cause 474 (4.7%) 1003 (4.0%) 247 (5.3%) 1724 (4.3%)
 Unspecified fall 925 (9.2%) 2414 (9.5%) 453 (9.8%) 3792 (9.5%)
Type of trauma
 High energy 117 (1.2%) 252(1.0%) 75(1.6%) 444 (1.1%)
 Low energy 8827 (88.0%) 22,569(88.9%) 3,963(85.5%) 35,359 (88.3%)
 Not applicable 190 (1.9%) 275(1.1%) 74 (1.6%) 539 (1.3%)
 Unknown 183 (1.8%) 626(2.5%) 143(3.1%) 952 (2.4%)
 Missing 716 (7.1%) 1,661(6.5%) 378(8.2%) 2755 (6.9%)
Location
 Home 4679 (46.6%) 13,000 (51.2%) 2389 (51.6%) 20,068 (50.1%)
 Institution 1334 (13.3%) 33,794 (14.9%) 644 (13.9%) 5772 (14.4%)
 Public place 409 (4.1%) 939 (3.7%) 167 (3.6%) 1515 (3.8%)
 Street 538 (5.4%) 1218 (4.8%) 188 (4.1%) 1944 (4.9%)
 Other 1137 (11.3%) 2006 (7.9%) 455 (9.8%) 3598 (9.0%)
 Unspecified 1936 (19.3%) 4426 (17.4%) 790 (17.1%) 7152 (17.9%)
  1. *The values are given as the mean and standard deviation
  2. Values are given as the number of patients, with the percent in parentheses
  3. i.e., stress fracture