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Analysis of SONFH-related environmental factors
| Factors | Case (%) | Control (%) | P | |
|---|---|---|---|---|
| Age | 41.65±0.73 | 41.42±0.84 | 0.836 | |
| Sex | Male | 75 (62.5) | 65 (65.0) | 0.779 |
| Female | 45 (37.5) | 35 (35.0) | ||
| Hypoxia | No | 42 (35.0) | 57 (57.0) | 0.002** |
| Yes | 78 (65.0) | 43 (43.0) | ||
| Methylprednisolone treatment | No | 54 (45.0) | 53 (53.0) | 0.279 |
| Yes | 66 (55.0) | 47 (47.0) | ||
| Leg hurt by electric shocks | No | 68 (56.7) | 55 (55.0) | 0.892 |
| Yes | 52 (43.3) | 45 (45.0) | ||
| Drinking | No | 56 (46.7) | 54 (54.0) | 0.343 |
| Yes | 64 (53.3) | 46 (46.0) |
P<0.05.
