Table A1.
ORs (95% CI) for metabolic syndrome according to the quartiles of total iron intake (mg/day) by age group in the SDHS 2012–2013.
| Quartiles of Dietary Iron Intake, ORs (95% CI) | |||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | p-Value for Trend 1 | |
| 18–44 years | |||||
| Total Iron Intake (mg/day) | <12.84 | (12.84–16.02) | (16.02–21.50) | ≥21.50 | |
| n | 241 | 241 | 241 | 241 | |
| Metabolic syndrome | |||||
| Crude model | Reference | 1.55(0.81,2.94) | 1.72(0.92,3.24) | 1.88(1.00,3.51) * | 0.237 |
| Adjusted model 2 | Reference | 1.53(0.77,3.03) | 1.66(0.82,3.34) | 1.96(0.86,4.46) | 0.430 |
| 45–59 years | |||||
| Total Iron Intake (mg/day) | <13.03 | (13.03–17.04) | (17.04–20.00) | ≥22.31 | |
| n | 280 | 279 | 279 | 279 | |
| Metabolic syndrome | |||||
| Crude model | Reference | 1.10(0.74,1.65) | 1.35(0.91,2.00) | 1.05(0.70,1.58) | 0.448 |
| Adjusted model 2 | Reference | 1.16(0.77,1.76) | 1.41(0.92,2.16) | 1.18(0.71,1.96) | 0.458 |
| 60-years | |||||
| Total Iron Intake (mg/day) | <12.31 | (12.31–16.28) | (16.28–20.00) | ≥21.86 | |
| n | 255 | 254 | 255 | 254 | |
| Metabolic syndrome | |||||
| Crude model | Reference | 1.03(0.70,1.50) | 1.11(0.77,1.62) | 1.03(0.70,1.51) | 0.949 |
| Adjusted model 2 | Reference | 1.24(0.83,1.86) | 1.54(1.00,2.37) * | 1.77(1.06,2.96) * | 0.135 |
* p < 0.05. 1 The p-value for the trend was examined using the medians in each quartile of dietary iron intake. 2 The models were adjusted for sex, income, physical activity level, intentional physical exercise, smoking status, alcohol use, and dietary total energy intake.