Figure 2

The prevalence of osteoporosis and osteopenia by age group (a, male; b, female). The differences in diagnoses from the reference are represented by sex and age groups. The gray portion and lined dark gray portion indicate the prevalence of osteopenia and osteoporosis, respectively. (a) In men, the prevalence obtained from the Korea National Health and Nutrition Examination Survey (KNHANES) male reference was higher than the values obtained from the NHANES III women reference across all age groups. (b) In men, the prevalence obtained from the NHANES III women reference was higher than the values obtained from the KNHANES female reference across all age groups.