. 2017 Oct 30;57(12):667–676. doi: 10.2176/nmc.ra.2017-0009

Table 1.

Surgical series for elderly patients with GBM

Author Year	N	Age	Surgery	OS (months)	95% CI	Note
Vuorinen²⁸⁾ 2003	30	>65	Resection	171 days	146–278	Randomized controlled trial
Vuorinen²⁸⁾ 2003	30	>65	Biopsy	85 days	55–157	Randomized controlled trial
Scott²⁹⁾ 2011	206	≥70	GTR	10.7	NA
			STR	6.9
			Biopsy	2.8
Hoffermann³⁰⁾ 2015	124	≥65	GTR	15.0	11.4–18.7
			STR	11.0	7.9–14.2
			Partial	6.4	4.1–8.8
			Biopsy	5.6	3.4–7.8
Lombardi¹⁵⁾ 2015	237	≥65	GTR	17.7	14.9–21.2
Lombardi¹⁵⁾ 2015	237	≥65	STR	16.1	11.6–21.07
Babu³¹⁾ 2016	120	≥65	GTR	14.1	NA
Babu³¹⁾ 2016	120	≥65	STR	9.6	NA
Almenawer³²⁾ 2015	12607	≥60	GTR	14.04	12.8–15.2	Meta-analysis of 34 studies
			STR	8.68	7.87–9.48
			Biopsy	5.71	5.04–6.36

GTR: gross total removal, STR: subtotal removal, OS: overall survival.