3.3 Association of ED and prevalence of osteoporosis in different subgroups
As shown in Figure 4 , the associations of ED with increased osteoporosis were not consistently the same in subgroups analyses. Significantly relationships of ED with osteoporosis were detected in age ≥ 45 years, obesity and those with non-diabetes population. In subgroups analysis, no statistically significantly of interaction term between ED and each strata factor was detected.