1.
本文纳入研究的基本特征
The general characteristics of included studies
| Author | Number of cases | Control type | Methods | Region | Year | |
| Tumor | Control | |||||
| BALF: bronchoalveolar lavage fluid; NLT: normal lung tissue. | ||||||
| Zochbauer-Muller[2] | 107 | 104 | NLT | qMSP | USA | 2001 |
| Zochbauer-Muller[2] | 107 | 35 | BALF | qMSP | USA | 2001 |
| Hsu[3] | 63 | 63 | Plasm | MSP | USA | 2007 |
| Yang[4] | 53 | 57 | NLT | MSP | China | 2007 |
| Yu[5] | 45 | 45 | BALF | MSP | China | 2007 |
| Yu[5] | 45 | 45 | Plasm | MSP | China | 2007 |
| Yang[6] | 60 | 60 | NLT | MSP | China | 2007 |
| Yu[7] | 45 | 23 | NLT | MSP | China | 2007 |
| Kang[8] | 60 | 15 | NLT | MSP | China | 2009 |
| Li[9] | 52 | 52 | NLT | MSP | China | 2009 |
| Song[10] | 78 | 78 | NLT | MSP | China | 2011 |
| Kang[11] | 47 | 47 | BALF | MSP | China | 2011 |
| Kang[12] | 53 | 53 | Plasm | MSP | China | 2011 |