| Mean age ± standard deviation (years) |
46.3 ± 14.0 |
43.7 ± 14.3 |
0.065 |
| Sex distribution |
|
|
0.346 |
| Male |
119 |
50 |
| Female |
141 |
73 |
| D-classification in each patient |
|
|
<0.001* |
| D1 |
3 |
5 |
| D2 |
62 |
58 |
| D3 |
130 |
38 |
| D4 |
65 |
22 |
| N-classification in each patient |
|
|
0.855 |
| N0 |
175 |
86 |
| N1 |
77 |
34 |
| N2 |
8 |
3 |
| B-classification in each patientǂ |
|
|
0.440 |
| B0 |
167 |
81 |
| B1 |
68 |
34 |
| B2 |
25 |
7 |
| Type of excised neurofibroma in each patient |
| Cutaneous neurofibroma |
230/260 (88.5%) |
120/123 (97.6%) |
0.003* |
| Nodular plexiform neurofibroma |
21/260 (8.1%) |
5/123 (4.1%) |
0.145 |
| Diffuse plexiform neurofibroma |
23/260 (8.8%) |
3/123 (2.4%) |
0.020* |
| Site of excised neurofibroma in each patient |
| Head/Neck |
94/260 (36.2%) |
41/123 (33.3%) |
0.590 |
| Trunk |
146/260 (56.2%) |
74/123 (60.2%) |
0.459 |
| Arm/Leg |
100/260 (38.5%) |
44/123 (35.8%) |
0.612 |
| Hand/Foot |
29/260 (11.2%) |
21/123 (17.1%) |
0.108 |
| Number of excised neurofibromas in each patient§ |
|
|
0.699 |
| 1 |
42 |
16 |
| 2−9 |
159 |
79 |
| ≥10 |
58 |
26 |
| Reason to undergo surgery in each patient (multiple selection allowed) |
| Cosmetic disturbance |
46/260 (17.7%) |
8/123 (6.5%) |
0.003* |
| Pain of tumor |
58/260 (22.3%) |
15/123 (12.2%) |
0.019* |
| Itch of tumor |
2/260 (0.8%) |
1/123 (0.8%) |
0.964 |
| Burden of tumor |
222/260 (85.4%) |
112/123 (91.1%) |
0.121 |
