From: Eating habit of adding salt to foods and incident sleep apnea: a prospective cohort study
Frequency of adding salt to food | p for trend | ||||
---|---|---|---|---|---|
Never/rarely | Sometimes | Usually | Always | ||
No. of SA cases/PY | 3,106/3,344,599 | 1,926/1,682,245 | 904/692,201 | 458/286,312 | |
Incident rate per 1000 PY (95% CI) | 0.93 (0.90, 0.96) | 1.15 (1.10, 1.20) | 1.31 (1.22, 1.39) | 1.60 (1.46, 1.75) | |
Model 1 | 1 (ref) | 1.21 (1.14, 1.28) | 1.32 (1.23, 1.42) | 1.63 (1.48, 1.80) | < 0.001 |
Model 2 | 1 (ref) | 1.18 (1.11, 1.25) | 1.27 (1.18, 1.37) | 1.37 (1.24, 1.51) | < 0.001 |
Model 3 | 1 (ref) | 1.10 (1.04, 1.16) | 1.13 (1.05, 1.22) | 1.21 (1.10, 1.34) | < 0.001 |
Model 4 | 1 (ref) | 1.11 (1.04, 1.17) | 1.15 (1.07, 1.24) | 1.24 (1.12, 1.37) | < 0.001 |