Table 1 The study population’s demographics and clinical characteristics at registration calculated according to venous ulcer duration before registration
Duration before registration | ||||||||
|---|---|---|---|---|---|---|---|---|
Variable | <=84 days | > 84 days | p* | Total | ||||
N | 358 | 341 | 699 | |||||
Sex (%) | ||||||||
Male | 145 (41) | 114 (33) | 259 (37) | |||||
Female | 213 (59) | 227 (67) | 0.053 | 440 (63) | ||||
Age (y) | ||||||||
Median (quartile range) | 76 (69–84) | 78 (71–85) | 0.056 | 77 (70–85) | ||||
Age quartiles, n (%) | ||||||||
≤ 69 | 90 (25.1) | 73 (21.4) | 163 (23.3) | |||||
69–77 | 98 (27.4) | 81 (23.8) | 179 (25.6) | |||||
77>-84 | 85 (23.7) | 82 (24.0) | 167 (23.9) | |||||
> 84 | 85 (24) | 105 (31) | 0.162 | 190 (27) | ||||
Body mass index (BMI; kg/m2) | ||||||||
Median (quartile range) | 27 (24–32) | 27 (24–31) | 0.926 | 27 (24–31) | ||||
Body mass index (BMI; kg/m2) | ||||||||
≤ 24 | 65 (18.2) | 67 (19.6) | 132 (18.9) | |||||
24>-27 | 57 (15.9) | 65 (19.1) | 122 (17.5) | |||||
27>-31 | 66 (18.4) | 72 (21.1) | 138 (19.7) | |||||
> 31 | 68 (19.0) | 72 (21.1) | 0.955 | 140 (20.0) | ||||
Missing | 102 (28.5) | 65 (19.1) | 167 (23.9) | |||||
Smoking, n (%) | ||||||||
Never smokers | 221 (61.7) | 225 (66.0) | 446 (63.8) | |||||
Ex-smoker | 83 (23) | 78 (23) | 161 (23) | |||||
Smokers | 38 (10.6) | 31 (9.1) | 0.668 | 69 (9.9) | ||||
Missing | 16 (4.5) | 7 (2.1) | 23 (3.3) | |||||
Duration of treatment from registration | ||||||||
Median (quartile range) | 60 (35–106) | 84 (42–181) | < 0.001 | 70 (36–140) | ||||
Duration of treatment from registration | ||||||||
≤ 70 days | 202 (56.4) | 148 (43.4) | 350 (50.1) | |||||
> 70 days | 156 (43.6) | 193 (56.6) | < 0.001 | 349 (49.9) | ||||
Regular exercise | 221 (61.7) | 225 (66.0) | 0.960 | 446 (63.8) | ||||
Pain (yes) | 198 (55.3) | 190 (55.7) | 0.976 | 388 (55.5) | ||||
Comorbidity, n (%) | ||||||||
Diabetes mellitus | 74 (20.7) | 63 (18.5) | - | 137 (19.6) | ||||
Heart/Lung/Vascular | 245 (68.4) | 252 (73.9) | - | 497 (71.1) | ||||
Inflammatory | 37 (10.3) | 43 (12.6) | - | 80 (11.4) | ||||
Neurological | 20 (5.6) | 24 (7.0) | - | 44 (6.3) | ||||
Malignancies | 21 (5.9) | 12 (3.5) | - | 33 (4.7) | ||||
Number of comorbidities n (%) | ||||||||
0 | 84 (23.5) | 69 (20.2) | 153 (21.9) | |||||
1 | 184 (51.4) | 174 (51.0) | 358 (51.2) | |||||
2 | 79 (22.1) | 86 (25.2) | 165 (23.6) | |||||
3 | 11 (3.1) | 12 (3.5) | 0.642 | 23 (3.3) | ||||
Compression therapy | ||||||||
No | 16 (4.5) | 16 (4.7) | 32 (4.6) | |||||
Yes | 340 (95.0) | 320 (93.8) | 0.989 | 660 (94.4) | ||||
Missing | 2 (0.6) | 5 (1.5) | - | 7 (1.0) | ||||
Staff per month | ||||||||
1–2 | 260 (72.6) | 186 (54.5) | 446 (63.8) | |||||
3–4 | 59 (16.5) | 69 (20.2) | 128 (18.3) | |||||
≥5 per month | 9 (2.5) | 15 (4.4) | 0.011a | 24 (3.4) | ||||
Missing | 30 (8.4) | 71 (20.8) | 101 (14.4) | |||||
Dressings per week (mean) | ||||||||
0-1.5 | 136 (38.0) | 92 (27.0) | 228 (32.6) | |||||
1.5-2 | 215 (60.1) | 233 (68.3) | 448 (64.1) | |||||
≥3 | 7 (2.0) | 16 (4.7) | 0.002b | 23 (3.3) | ||||
Given self-care advice | ||||||||
Nutrition | 175 (48.9) | 163 (47.8) | 0.836 | 338 (48.4) | ||||
Physical activity | 212 (59.2) | 177 (51.9) | 0.186 | 389 (55.7) | ||||
Combination nutrition; activity | 162 (45.3) | 147 (43.1) | 0.966 | 309 (44.2) | ||||