a slight trendp = 0.343
bevacizumab group, pemetrexed did not exhibit an obvious change in PFS (HR = 0.96, p = 0.752; I 2 = 35.8%, p = 0.212) or OS (HR = 0.98, p = 0.744, I 2 = 0.0%) but exhibited a slight trend to reduce grade 3–4 AEs (HR = 0.79, p = 0.343, I 2 = 65.7, p = 0.088).