Table 4.
Descriptive statistics of quantitative features by tumour severity and diagnosis for neuroblastic tumours included in our retrospective study.
| Severity | Variable | Mean | SD | LCLM 95% | UCLM 95% | Median | Minimum | Maximum |
|---|---|---|---|---|---|---|---|---|
| Benign (N = 16) |
Total volume (cc) | 155 | 266 | 31 | 168 | 37 | 1 | 1166 |
| ADC small | 1.54 | 0.69 | 1.15 | 1.94 | 1.53 | 0.71 | 3.82 | |
| ADC large | 1.63 | 0.71 | 1.21 | 2.05 | 1.52 | 0.76 | 3.81 | |
| Age at diagnosis (months) | 101 | 1 | 75 | 139 | 96 | 14 | 193 | |
| Malignant (N = 24) |
Total volume (cc) | 147 | 234 | 49 | 246 | 43 | 1 | 956 |
| ADC small | 0.85 | 0.38 | 0.68 | 0.95 | 0.78 | 0.20 | 1.92 | |
| ADC large | 0.91 | 0.71 | 0.73 | 1.03 | 0.88 | 0.76 | 1.94 | |
| Age at diagnosis (months) | 20 | 1 | 9 | 32 | 10 | 0 | 119 | |
| Diagnosis | Variable | Mean | SD | LCLM 95% | UCLM 95% | Median | Minimum | Maximum |
| GN (N = 10) |
Total volume (cc) | 93 | 90 | 23 | 153 | 48 | 1 | 264 |
| ADC small | 1.52 | 0.44 | 1.22 | 1.83 | 1.63 | 0.88 | 2.16 | |
| ADC large | 1.64 | 0.51 | 1.24 | 2.04 | 1.72 | 0.95 | 2.40 | |
| Age at diagnosis (months) | 121 | 54 | 93 | 173 | 132 | 34 | 193 | |
| GNB (N = 6) |
Total volume (cc) | 269 | 430 | 75 | 314 | 22 | 1 | 1166 |
| ADC small | 1.59 | 1.05 | 0.38 | 2.79 | 1.29 | 0.71 | 3.83 | |
| ADC large | 1.63 | 1.04 | 0.41 | 2.81 | 1.21 | 0.76 | 3.81 | |
| Age at diagnosis (months) | 63 | 40 | 18 | 110 | 58 | 14 | 140 | |
| NB (N = 24) |
Volume | 147 | 234 | 49 | 246 | 43 | 1 | 956 |
| ADC small | 0.82 | 0.32 | 0.68 | 0.95 | 0.78 | 0.20 | 1.66 | |
| ADC large | 0.88 | 0.35 | 0.73 | 1.03 | 0.88 | 0.24 | 1.66 | |
| Age at diagnosis (months) | 21 | 26 | 9 | 32 | 10 | 0 | 119 |
Abbreviations: LCLM = lower confidence limit for the mean; UCLM = upper confidence limit for the mean; N = number of patients; cc = cubic centimetres; GN = ganglioneuroma; GNB = ganglioneuroblastoma; NB = neuroblastoma; SD = standard deviation; ADC = apparent diffusion coefficient.