The Role of Combination Maintenance with Pemetrexed and Bevacizumab for Advanced Stage Nonsquamous Non-Small Cell Lung Cancer: A Systematic Review and Meta-Analysis

Table 2

Evaluation of risk of bias in included studies.

Study	Random sequence; generation	Concealment of; allocation	Blinding	Incomplete outcome; (attrition bias)	Selective; reporting	Other; biases
J. Patel (2013) [11]	Yes	Not informed	No	I: 30/472; C: 24/467	No	No
F. Barlesi (2013) [12]	Yes	Not informed	No	I: 3/128; C: 5/125	No	No
M. Karayama (2016) [13]	Yes	Yes	No	I: 10/55; C: 20/55	No	No

of participants missing after randomization. I, intervention arm; C, control arm