Pancreaticoduodenectomy versus limited resection for duodenal gastrointestinal stromal tumors: a systematic review and meta-analysis

Table 4 Distribution of clinicopathological characteristics by surgical group

	No. of studies	PD group		LR group		OR	95%CI	p value	Heterogeneity (I²), %	Egger’s test (p value)
	No. of studies	Total	Events	Total	Events	OR	95%CI	p value	Heterogeneity (I²), %	Egger’s test (p value)
Gender (male)	9	173	102	345	173	1.38	0.95–2.02	0.09	0	–
Location(D2)	8	128	83	292	110	3.39	1.69–6.79	< 0.001	50	–
Mitotic count ≥5	7	148	55	288	60	2.24	1.42–3.52	< 0.001	0	–
Risk category (High+Intermediate)	9	173	106	345	119	3.17	2.13–4.71	< 0.001	0	–
Margins resection (R1 + R2)	10	184	3	402	28	0.54	0.20–1.45	0.22	0	0.181
Postoperative complication	10	196	80	427	82	2.90	1.90–4.42	< 0.001	10	0.319
Imatinib therapy	5	84	26	176	38	1.78	0.93–3.38	0.08	0	–

LR Limited resection, PD Pancreaticoduodenectomy, D2 The second part of the duodenum, OR Odds ratio, CI Confidence interval, R1 Incomplete excision with positive margins under microscopy, R2 Incomplete excision with macroscopic positive margins

ISSN: 1471-2482