Table 5  Effect of monounsaturated fatty acids on the risk of developing endometriosis (data from Parazzini et al. 23 ).

Literature	Monounsaturated fatty acids	Polyunsaturated fatty acids	Omega-3 fatty acids	Omega-6 fatty acids
▴ = increased risk, ▾ = decreased risk
Britton et al., 2000	p = 0.05 ▴	p = 0.001 ▴	–	–
Parazzini et al., 2004	–	–	–	–
Heilier et al., 2007	–	–	–	–
Trabert et al., 2011	Not significant	Not significant	Not significant	Not significant
Missmer et al., 2010	Not significant	Not significant	p = 0.03 ▾	Not significant
Savaris et al., 2011	Not significant	–	p = 0.045 ▾	p = 0.006 ▾