Figure 2.

Responder meta-analysis of patients having control of their nausea and vomiting resulting from chemotherapy: A) Medical cannabinoid compared with placebo; B) medical cannabinoid compared with another antiemetic (neuroleptics).

^*Mantel-Haenszel method, fixed-effects meta-analysis.

^†Mantel-Haenszel method, random-effects meta-analysis.

Meta-analysis of studies for Figure 2A from Whiting et al² (Meiri, 2007, Duran, 2010, Melham-Bertrandt, 2014), Smith et al²⁵ (Sallan, 1975, Wada, 1982), and Machado Rocha et al²⁶ (Frytak, 1979, Orr, 1980). Meta-analysis of studies for Figure 2B from Smith et al²⁵ (Frytak, 1979, Herman, 1979, Lane, 1991, McCabe, 1988) and Machado Rocha et al²⁶ (Ahmedzai, 1983, Chan, 1987, Dalzell, 1986, Hutcheon, 1983, Johansson, 1982, Niederle, 1986, Niiranen, 1985, Orr, 1980, Sallan, 1980, Sheidler, 1984).