Open Access
Table 1
Characteristics of the study population.
| XUUB total |
Xining |
Urumqi |
Ulm |
Besançon |
p-value | Europe |
China |
p-value | |
|---|---|---|---|---|---|---|---|---|---|
| n = 200 | n = 50 | n = 50 | n = 50 | n = 50 | n = 100 | n = 100 | |||
| Sex | 0.048 | 0.777 | |||||||
| Male | 97 (49) | 20 (40) | 27 (64) | 19 (38) | 31 (62) | 50 (50) | 47 (47) | ||
| Female | 103 (51) | 30 (60) | 23 (46) | 31 (62) | 19 (38) | 50 (50) | 53 (53) | ||
| Age | 47.1 ± 18.6 | 36 ± 12.4 | 36.9 ± 13.1 | 53 ± 17.5 | 62.5 ± 16.4 | <0.001 | <0.001 | ||
| < 18 years | 7 (4) | 4 (8) | 2 (4) | 1 (2) | 0 (0) | 1 (1) | 6 (6) | ||
| 18–40 years | 60 (30) | 20 (40) | 27 (54) | 11 (22) | 2 (4) | 13 (13) | 47 (47) | ||
| 41–60 years | 74 (37) | 26 (52) | 17 (34) | 14 (28) | 17 (34) | 31 (31) | 43 (43) | ||
| 61–80 years | 43 (22) | 0 (0) | 4 (8) | 23 (46) | 16 (32) | 39 (39) | 4 (4) | ||
| > 81 years | 16 (8) | 0 (0) | 0 (0) | 1 (2) | 15 (30) | 16 (16) | 0 (0) | ||
| Number of lesions | 1 (1–2) | 1 (1–2) | 1 (1–2) | 1 (1–4) | 1 (1–2) | 0.248 | 1 (1–2) | 1 (1–2) | 0.091 |
| 1 lesion | 162 (81) | 46 (92) | 44 (88) | 32 (64) | 40 (80) | 81 (81) | 90 (90) | ||
| 2–3 lesions | 30 (15) | 4 (8) | 5 (10) | 12 (24) | 9 (18) | 21 (21) | 9 (9) | ||
| 4–6 lesions | 6 (3) | 0 (0) | 1 (2) | 4 (8) | 1 (2) | 5 (5) | 1 (1) | ||
| > 6 lesions | 2 (1) | 0 (0) | 0 (0) | 2 (4) | 0 (0) | 2 (2) | 0 (0) | ||
| Size of the largest lesion | 95.5 ± 50.9 | 102.2 ± 46.4 | 135.3 ± 45.8 | 80.8 ± 50 | 63.7 ± 29.6 | <0.001 | 72.26 41.76 | 118.72 48.81 | <0.001 |
| Type I | 35.7 ± 34.5 | – | 76.5 ± 43.1 | 19.4 ± 12.3 | – | 19.4 ± 12.3 | 76.5 ± 43.1 | ||
| Type II | 67.5 ± 36 | 83.6 ± 31.1 | 108 ± 58.6 | 55.1 ± 27.1 | 59.9 ± 25.7 | 57 ± 26.3 | 93.3 ± 44 | ||
| Type III | 113.4 ± 48.5 | 116.6 ± 46.6 | 145.5 ± 43.1 | 121 ± 42 | 68.4 ± 28.3 | 92 ± 43.7 | 129.6 ± 46 | ||
| Type IV | 55.9 ± 28.1 | 56.3 ± 18.7 | 125 | 68 | 34.8 ± 19 | 41.4 ± 22.2 | 63.9 ± 28.8 | ||
| Type V | 123.4 ± 52.4 | 145.5 ± 3.5 | 160 ± 26.5 | – | 75.8 ± 48.9 | 75.8 ± 48.9 | 155.2 ± 21.9 |
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