Table 1. Studies excluded from the present meta-analysis.
| Authors | Study design | Stage | No. of limited resection | No. of lobectomy | Reasons for exclusion | Survival difference |
|---|---|---|---|---|---|---|
| Errett et al (1985) | RS | IA+B | ||||
| IIA | 100 (W) | 97 | Included advanced and unknown stages | NS | ||
| Unknown | ||||||
| Pastorino et al (1991) | RS | IA+B | 61 (S+W) | 411 | Up dated by Pastorino et al (1997) | NS |
| Sugarbaker and Strausss (2000) | Review | IA+B | 58 (S+W) | 172 | Same series of patients was reported by Kwiatkowski et al (1998) | Lobectomy better |
| Miller et al (2002) | RS | IA+IB | ||||
| IIA | Included advanced stages | Lobectomy better | ||||
| IIIA | 25 (S+W) | 75 | ||||
| ⩽1 cm |
RS=retrospective study; S=segmentectomy; W=wedge resection; ND=not described; NS=not significant.