Foot status of patients with diabetes mellitus recorded in the Funen Diabetes Database, Denmark, 2003–2018
| Type 1 diabetes | Type 2 diabetes | Other types of diabetes | Unknown type of diabetes | |||||
| Left | Right | Left | Right | Left | Right | Left | Right | |
| Sensitivity (vibration, biothesiometry or monofilament test) | ||||||||
| None | 277 (8%) | 282 (8%) | 1282 (9%) | 1287 (9%) | 10 (4%) | 9 (4%) | 66 (7%) | 65 (7%) |
| Reduced | 602 (18%) | 603 (18%) | 3425 (23%) | 3453 (23%) | 56 (25%) | 53 (23%) | 163 (18%) | 171 (19%) |
| Normal | 2499 (74%) | 2494 (74%) | 10 241 (69%) | 10 231 (68%) | 162 (71%) | 166 (73%) | 662 (74%) | 655 (74%) |
| Missing | 313 (8%) | 312 (8%) | 4137 (22%) | 4114 (22%) | 64 (22%) | 64 (22%) | 5101 (85%) | 5101 (85%) |
| Pulse | ||||||||
| No | 197 (6%) | 195 (6%) | 1321 (9%) | 1318 (9%) | 11 (5%) | 10 (4%) | 74 (8%) | 75 (8%) |
| Yes | 3178 (94%) | 3183 (94%) | 13 604 (91%) | 13 624 (91%) | 212 (95%) | 213 (96%) | 810 (92%) | 810 (92%) |
| Missing | 316 (9%) | 313 (8%) | 4160 (22%) | 4143 (22%) | 69 (24%) | 69 (24%) | 5108 (85%) | 5107 (85%) |
| Foot at risk | ||||||||
| No | 2534 (75%) | 2521 (75%) | 9908 (68%) | 9981 (68%) | 156 (70%) | 157 (70%) | 530 (63%) | 527 (62%) |
| Yes | 824 (25%) | 839 (25%) | 4745 (32%) | 4697 (32%) | 67 (30%) | 67 (30%) | 317 (37%) | 318 (38%) |
| Missing | 333 (9%) | 331 (9%) | 4432 (23%) | 4407 (23%) | 69 (24%) | 68 (23%) | 5145 (86%) | 5147 (86%) |
| Foot ulcer | ||||||||
| No | 3245 (97%) | 3228 (96%) | 14 227 (97%) | 14 150 (96%) | 216 (97%) | 218 (97%) | 827 (95%) | 828 (96%) |
| Yes | 106 (3%) | 128 (4%) | 487 (3%) | 588 (3%) | 7 (3%) | 6 (3%) | 40 (5%) | 38 (4%) |
| Missing | 340 (9%) | 335 (9%) | 4371 (23%) | 4347 (23%) | 69 (24%) | 68 (23%) | 5125 (86%) | 5126 (86%) |
| Amputation | ||||||||
| Above ankle | 17 (1%) | 14 (0%) | 66 (0%) | 66 (0%) | ≤5 | ≤5 | ≤5 | ≤5 |
| Below ankle | 16 (0%) | 18 (1%) | 69 (0%) | 66 (0%) | ≤5 | ≤5 | ≤5 | ≤5 |
| No | 3331 (99%) | 3336 (99%) | 14 247 (99%) | 14 282 (99%) | 222 (100%) | 223 (99%) | 840 (100%) | 840 (100%) |
| Missing | 327 (9%) | 323 (9%) | 4703 (25%) | 4671 (24%) | 69 (24%) | 67 (23%) | 5148 (86%) | 5149 (86%) |
| Ankle brachial index | ||||||||
| Median (IQR) | 1.12 (1.00–1.20) | 1.12 (1.00–1.20) | 1.03 (0.94–1.14) | 1.03 (0.94–1.14) | 1.07 (1.00–1.15) | 1.13 (1.00–1.16) | 1.00 (0.91–1.13) | 1.03 (0.95–1.11) |
| Missing | 2249 (61%) | 2245 (61%) | 14 641 (77%) | 14 636 (77%) | 275 (94%) | 275 (94%) | 5907 (99%) | 5905 (99%) |