Subgroup Analyses
In the OSA and control group analyses, the following associations were
found between BVFL and seven individual variables: 1) For age, HR for
the 40-59 years group was 1.20 (95%CI, 1.09-1.32). 2) For sex, the
adjusted HR in the female group was 1.22 (95%CI, 1.10-1.35) compared to
the male group. 3) For residential areas, the HR values for “Seoul”
and “Rural” were 1.39(95%CI, 1.23-1.59) and 1.08 (95%CI, 0.96-1.22),
respectively, compared to the Metropolitan group. 4) In the high
economic status group, the adjusted HR was 1.10 (95%CI, 1.01-1.21)
compared to the low economic status group. 5), 6), 7) For underlying
diseases, the adjusted HRs for the HTN, DM, and CKD groups were
1.06(95%CI, 0.95-1.17), 1.54 (95%CI, 1.38-1.71), and 1.63 (95%CI,
1.40-1.89), respectively, compared to the equivalent groups without
underlying diseases (Table 2, Figure 3,4).