Table 1.
Distribution of 503 patients in different regions (n = 503)
| Chongqing (n = 413) | Sichuan Province (n = 81) | Other regions (n = 9) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Pengshui | 62 | Tongliang | 10 | Dazu | 2 | Dazhou | 44 | Tibet | 1 |
| Shapingba | 33 | Yuzhong | 10 | Fengjie | 2 | Guangan | 23 | Jilin Province | 1 |
| Banan | 29 | Wulong | 9 | Youyang | 2 | Ziyang | 4 | Hubei Province | 1 |
| Yubei | 25 | Dadukou | 9 | Yunyang | 2 | Yibin | 3 | Heilongjiang Province | 1 |
| Fengdu | 21 | Yongchuan | 6 | Wushan | 2 | Guangyuan | 2 | Guizhou Dejiang | 1 |
| Nanan | 20 | Jiangjin | 6 | Tongnan | 2 | Luzhou | 2 | Guizhou Fenggang | 1 |
| Beibei | 20 | Nanchuan | 6 | Rongchang | 1 | Neijiang | 2 | Guizhou Qianxi | 1 |
| Changshou | 19 | Bishan | 5 | Shizhu | 1 | Chengdu | 1 | Guizhou Tongren | 1 |
| Zhong | 16 | Kai | 5 | Wanzhou | 1 | Guizhou Yinjiang | 1 | ||
| Fuling | 15 | Qijiang | 5 | Xiushan | 1 | ||||
| Hechuan | 15 | Liangping | 5 | Qiangjiang | 1 | ||||
| Jiulongpo | 14 | Wansheng | 4 | ||||||
| Dianjiang | 13 | Wuxi | 4 | ||||||