Table 3. Threshold Analyses of Dietary Niacin Intake on New-Onset Hypertension Using 2-Piecewise Regression Models.
| Niacin intake, mg/d | Crude model | Niacin intake, mg/d | Adjusted modela | ||
|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | ||
| <16.0 | 0.95 (0.93-0.96) | <.001 | <15.6 | 0.98 (0.96-1.00) | .04 |
| ≥16.0 | 1.04 (1.03-1.05) | <.001 | ≥15.6 | 1.03 (1.02-1.04) | <.001 |
Abbreviation: HR, hazard ratio.
SI conversion factor: To convert niacin to μmol/d, multiply by 8.123.
a
Adjusted for age, sex, body mass index, smoking status, systolic blood pressure, diastolic blood pressure, region, education, and occupation, as well as energy intake and sodium to potassium intake ratio.