Table 2 Comparison of clinical data [n(%)]
|  | Research group (n=142) | Control group (n=120) | t or χ2 | P |
|---|---|---|---|---|
Age (year) | 36.29±5.33 | 35.12±4.62 | 1.881 | 0.061 |
Sex | Â | Â | 0.728 | 0.393 |
 Male | 89 (62.68) | 69 (57.50) |  |  |
 Female | 53 (37.32) | 51 (42.50) |  |  |
Tumor grade | Â | Â | Â | Â |
 Grade I to II | 79 (55.63) |  |  |  |
 Grade III to IV | 63 (44.37) |  |  |  |
Tumor diameter (cm) | 4.51±1.27 |  |  |  |
Tumor location | Â | Â | Â | Â |
 Frontal lobe | 41 (28.87) |  |  |  |
 Temporal lobe | 58 (40.85) |  |  |  |
 Parietal lobe | 30 (21.13) |  |  |  |
 Others | 13 (9.15) |  |  |  |
Distant metastasis | Â | Â | Â | Â |
 Yes | 39 (27.46) |  |  |  |
 No | 103 (72.54) |  |  |  |
Family history of glioma | Â | Â | 3.133 | 0.077 |
 Yes | 19 (13.38) | 5 (4.17) |  |  |
 No | 123 (86.62) | 115 (93.33) |  |  |
Smoking | Â | Â | 0.257 | 0.612 |
 Yes | 54 (38.03) | 42 (35.00) |  |  |
 No | 88 (61.97) | 78 (65.00) |  |  |
Drinking | Â | Â | 0.541 | 0.462 |
 Yes | 62 (43.66) | 47 (39.17) |  |  |
 No | 80 (56.34) | 73 (60.83) |  |  |