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. 2016 Jun 20;6(6):e010811. doi: 10.1136/bmjopen-2015-010811

Table 2.

Participant characteristics for each hospital site (number (%) unless otherwise stated)

n Total Large regional Major regional Large Metro Major Metro specialty Major Metro. general p Value
Participants 733 733 21 82 90 232 308
Ward
 Medical 733 459 (62.6%) 16 (76.2%) 49 (59.8%) 57 (63.3%) 171 (73.7%) 166 (53.9%)
 Surgical 733 274 (37.4%) 5 (23.8%) 33 (40.2%) 33 (36.7%) 61 (26.3%) 142 (46.1%) <0.001*
Demographics
 Age (SD) years 731 62.0 (18.6) 50.0 (18.0)* 63.5 (19.1) 63.2 (18.3) 65.5 (18.3) 59.5 (18.3)* <0.001*
 Age range years 731 18–99 20–85 18–91 21–96 18–99 18–94
 Age groups 731
  18–40 years 110 (15.0%) 6 (28.6%) 12 (14.6%) 12 (13.3%) 28 (12.1%) 52 (16.9%)
  41–60 years 188 (25.7%) 8 (38.1%) 20 (24.4%) 23 (25.6%) 54 (23.4%) 83 (27.0%)
  61–80 years 316 (43.2%) 6 (28.6%) 36 (43.9%) 37 (41.1%) 94 (40.7%) 143 (46.6%)
  81+ years 117 (16.0%) 1 (4.8%) 14 (17.1%) 18 (20.0%) 55 (23.8%) 29 (9.4%) <0.001*
 Male sex 731 408 (55.8%) 13 (61.9%) 52 (63.4%) 46 (51.1%) 127 (54.7%) 170 (55.6%) 0.531
Social determinants
 Socioeconomic status 711
  Most disadvantaged 102 (14.3%) 6 (28.6%) 4 (5.1%) 30 (34.1%) 23 (10.2%) 39 (13.1%)
  Second most disadvantaged 159 (22.4%) 2 (9.5%) 41 (51.9%) 40 (45.5%) 27 (11.9%) 49 (16.5%)
  Middle 98 (13.8%) 12 (57.1%) 27 (34.2%) 10 (11.4%) 22 (9.7%) 27 (9.1%)
  Second least disadvantaged 240 (33.8%) 1 (4.8%) 5 (6.3%) 8 (9.1%) 131 (58.0%) 95 (32.0%)
  Least disadvantaged 112 (15.8%) 0 2 (2.5%) 0 23 (10.2%) 87 (29.3%) <0.001*
 Geographic remoteness 711
  Major city 435 (61.2%) 1 (4.8%) 1 (1.3%) 54 (61.4%) 179 (79.2%) 200 (67.3%)
  Inner regional area 153 (21.5%) 0 40 (50.6%) 26 (29.5%) 36 (15.9%) 51 (17.2%)
  Outer regional area 66 (9.3%) 1 (4.8%) 21 (26.6%) 8 (9.1%) 5 (2.2%) 31 (10.4%)
  Remote area 30 (4.2%) 2 (9.5%) 13 (16.5%) 0 5 (2.2%) 10 (2.4%)
  Very remote area 27 (3.8%) 17 (81.0%) 4 (5.1%) 0 1 (0.4%) 5 (1.7%) <0.001*
 Highest education level 731 21 82 90 230 308
  Year 10 and under 395 (54.0%) 14 (66.7%) 58 (70.7%) 54 (60.0%) 124 (53.9%) 145 (47.1%)
  Year 12 132 (18.1%) 3 (14.3%) 9 (11.0%) 18 (20.0%) 38 (16.5%) 64 (20.8%)
  Certificate in trade or business 74 (10.1%) 2 (9.5%) 9 (11.0%) 10 (11.1%) 25 (10.9%) 28 (9.1%)
  Diploma or associate degree 46 (6.3%) 0 5 (6.1%) 5 (5.6%) 17 (7.4%) 19 (6.2%)
  Bachelor degree 48 (6.6%) 0 0 1 (1.1%) 12 (5.2%) 35 (11.4%)
  Graduate diploma or certificate 15 (2.1%) 1 (4.8%) 0 2 (2.2%) 6 (2.6%) 6 (1.9%)
  Postgraduate degree 18 (2.5%) 1 (4.8%) 1 (1.2%) 0 7 (3.0%) 9 (2.9%)
  Other 3 (0.4%) 0 0 0 1 (0.4%) 2 (0.6%) <0.001*
 Born overseas 731 161 (22.0%) 2 (9.5%) 11 (13.4%) 20 (22.5%) 53 (22.8%) 75 (24.4%) 0.159
 Indigenous 732 34 (4.6%) 10 (47.6%) 5 (6.1%) 3 (3.4%) 8 (3.4%) 8 (2.6%) <0.001*
Medical condition history
 Diabetes 733 172 (23.5%) 6 (28.6%) 20 (24.4%) 18 (20.0%) 66 (28.4%) 62 (20.1%) 0.195
 Type 2 diabetes† 162 (22.1%) 6 (28.6%) 20 (24.4%) 18 (20.0%) 59 (25.4%) 59 (19.2%) 0.139
 Hypertension 733 359 (49.0%) 11 (52.4%) 40 (48.8%) 52 (57.8%) 129 (55.6%) 127 (41.2%) 0.006*
 Dyslipidaemia 733 234 (31.9%) 6 (28.6%) 30 (36.6%) 34 (37.8%) 91 (39.2%) 73 (23.7%) 0.001*
 Myocardial infarct 733 146 (19.9%) 4 (19.0%) 10 (12.2%) 18 (20.0%) 67 (28.9%) 47 (15.3%) 0.001*
 Cerebrovascular accident 733 85 (11.6%) 1 (4.8%) 10 (12.2%) 10 (11.1%) 36 (15.5%) 28 (9.1%) 0.173
 Chronic kidney disease 733 89 (12.1%) 1 (4.8%) 9 (11.0%) 15 (16.7%) 31 (13.4%) 33 (10.7%) 0.431
 End-stage kidney disease† 733 9 (1.2%) 0 3 (3.7%) 1 (1.1%) 0 5 (1.6%) NA
 Cancer 733 174 (23.7%) 1 (4.8%) 19 (23.2%) 26 (28.9%) 43 (18.5%) 85 (27.6%) 0.021*
 Arthritis 733 274 (37.4%) 5 (23.8%) 36 (44.4%) 40 (44.4%) 91 (39.2%) 102 (33.1%) 0.100
 Depression 733 191 (26.1%) 2 (9.5%) 29 (35.4%) 28 (31.1%) 55 (23.7%) 77 (25.0%) 0.069
 Acute foot trauma 733 26 (3.5%) 1 (4.8%) 4 (4.9%) 6 (6.7%) 2 (0.9%) 13 (4.2%) 0.079
 Smoker 733 104 (14.2%) 7 (33.3%) 18 (22.0%) 17 (18.9%) 12 (5.2%) 50 (16.2%) <0.001*
 Ex-smoker 733 304 (41.5%) 10 (47.6%) 34 (41.5%) 35 (38.9%) 109 (47.0%) 116 (37.7%) 0.256
Self-care ability
 Mobility impairment 729 242 (33.2%) 4 (19.0%) 36 (43.9%) 37 (41.1%) 78 (33.8%) 87 (28.5%) 0.020*
 Vision impairment 730 110 (15.1%) 2 (9.5%) 10 (12.2%) 12 (13.5%) 41 (17.7%) 45 (14.7%) 0.637
 Footwear worn: inside 728
  Low-risk footwear 81 (11.1%) 0 9 (11.0%) 5 (5.6%) 29 (12.7%) 38 (12.4%)
  Moderate-risk footwear 263 (36.1%) 2 (9.5%) 35 (42.7%) 28 (31.1%) 108 (47.2%) 90 (29.4%)
  High-risk footwear 139 (19.1%) 11 (52.4%) 12 (14.6%) 17 (18.9%) 33 (14.4%) 66 (21.6%)
  No footwear worn 245 (33.7%) 8 (38.1%) 26 (31.7%) 40 (44.4%) 59 (25.8%) 112 (36.6%) <0.001*
 Footwear worn: outside 726
  Low-risk footwear 386 (53.2%) 12 (57.1%) 46 (56.1%) 50 (55.6%) 118 (51.5%) 160 (52.6%)
  Moderate-risk footwear 75 (10.3%) 1 (4.8%) 8 (9.8%) 10 (11.1%) 34 (14.8%) 22 (7.2%)
  High-risk footwear 250 (34.4%) 8 (38.1%) 26 (31.7%) 29 (32.2%) 74 (32.3%) 113 (37.2%)
  No footwear worn 15 (2.1%) 0 2 (2.4%) 1 (1.1%) 3 (1.3%) 9 (3.0%) 0.405
Past foot treatment 733
 Yes 256 (34.9%) 6 (28.6%) 38 (46.3) 31 (34.4%) 83 (35.8%) 98 (31.8%) 0.167
 Podiatrist 180 (24.6%) 4 (19.0%) 21 (25.6%) 23 (25.6%) 70 (30.2%) 62 (20.1%) 0.105
 GP 93 (12.7%) 3 (14.3%) 22 (26.8%) 8 (8.9%) 19 (8.2%) 41 (13.3%) <0.001*
 Surgeon 36 (4.9%) 0 6 (7.3%) 2 (2.2%) 6 (2.6%) 22 (7.1%) 0.050
 Physician 21 (2.9%) 2 (9.5%) 7 (8.5%) 0 4 (1.7%) 8 (2.6%) 0.002*
 Nurse 20 (2.7%) 1 (4.8%) 3 (3.7%) 0 6 (2.6%) 10 (3.2%) 0.486
 Orthotist 4 (0.5%) 0 1 (1.2%) 1 (1.1%) 0 2 (0.6%) NA
 Other 9 (1.2%) 3 (14) 0 1 (1.1%) 0 5 (1.6%) NA
Foot disease history
 Previous peripheral neuropathy 728 99 (13.6%) 0 9 (11.0%) 13 (14.4%) 20 (8.7%) 57 (18.8%) 0.004*
 Previous PAD 728 97 (13.3%) 1 (4.8%) 7 (8.5%) 13 (14.4%) 17 (7.4%) 59 (19.4%) 0.001*
 Previous foot ulcer 731 72 (9.8%) 1 (4.8%) 6 (7.3%) 9 (10.0%) 17 (7.4%) 39 (12.7%) 0.228
 Previous amputation 731 30 (4.1%) 0 2 (2.4%) 3 (3.3%) 6 (2.6%) 19 (6.2%) 0.181
Foot risk factors
 Peripheral neuropathy 728 160 (22.0%) 3 (14.3%) 24 (29.6%) 16 (17.8%) 58 (25.1%) 59 (19.3%) 0.137
 PAD 728
  Mild PAD 69 (9.5%) 2 (9.5%) 7 (8.5%) 8 (8.9%) 25 (10.8%) 27 (8.9%)
  Moderate PAD 51 (7.0%) 0 5 (6.1%) 7 (7.8%) 18 (7.8%) 21 (6.9%)
  Critical PAD 33 (4.5%) 1 (4.8%) 2 (2.4%) 3 (3.3%) 8 (3.5%) 19 (6.3%) 0.887
 Foot deformity 706 158 (22.4%) 2 (9.5%) 13 (16.0%) 20 (22.7%) 51 (22.5%) 72 (24.9%) 0.293
Foot disease
 Acute Charcot 730 2 (0.3%) 0 0 0 2 (0.9%) 0 NA
 Current foot ulcer 732 46 (6.3%) 0 6 (7.3%) 5 (5.6%) 10 (4.3%) 25 (8.1%) 0.298
 Current foot infection 723 24 (3.3%) 0 5 (6.2%) 3 (3.3%) 5 (2.2%) 11 (3.6%) 0.405
Foot risk status 731
 Low risk 445 (60.9%) 15 (71.4%) 43 (52.4%) 59 (65.6%) 132 (57.1%) 196 (63.8%)
 At risk 111 (15.2%) 1 (4.8%) 20 (24.4%) 9 (10.0%) 50 (21.6%) 31 (10.1%)
 High risk 109 (14.9%) 4 (19.0%) 8 (9.8%) 16 (17.8%) 37 (16.0%) 44 (14.4%)
 Acute 66 (9.0%) 1 (4.8%) 11 (13.4%) 6 (6.7%) 12 (5.2%) 36 (11.7%) 0.001*
Foot-related condition admission (95% CI) 732 82 (11.2%) (9.1 to 13.7) 1 (4.8%) 13 (15.9%) 6 (6.7%) 14 (6.0%) 48 (15.6%) 0.002*
 Primary reason (95% CI) 732 54 (7.4%) (5.7 to 9.5) 1 (4.8%) 10 (12.2%) 5 (5.6%) 5 (2.2%) 33 (10.7%) 0.002*
 Secondary reason (95% CI) 732 28 (3.8%) (2.6 to 5.5) 0 3 (3.7%) 1 (1.1%) 9 (3.9%) 15 (4.9%) NA

*p Value of <0.05.

†Numbers also included in overall condition. GP, general practitioner; Metro, metropolitan; NA, not applicable to test as the assumption of χ2 test is violated as two cells had expected count <5; PAD, peripheral arterial disease.