Table 4.
Association of serum Mg with demographic factors, diabetes and HOMA-IR 1.
| IV | Estimate (95% CI) 2,3 | Estimate (95% CI) 3,4 | p | Distribution of Continuous IV | |
|---|---|---|---|---|---|
| mmol·L−1 | 5th (95% CI ) | 95th (95% CI ) | |||
| Diabetes 5 | −0.07 (−0.08, −0.06) | - | <0.001 | - | - |
| Age, year | 0.01 (0.01, 0.01) | 0.04 (0.03, 0.05) | <0.001 | 20.6 (18.0, 23.3) | 70.8 (69.1, 72.5) |
| Household income, K | 0.0008 (0.0004, 0.0012) | 0.02 (0.01, 0.02) | <0.001 | 14.5 (10.3, 18.7) | 199.0 (162.0, 236.0) |
| HOMA-IR | −0.003 (−0.004, −0.002) | −0.02 (−0.02, −0.01) | <0.001 | 0.80 (0.67, 0.93) | 6.99 (6.34, 7.65) |
1 Results from fasted adults aged 20–79 years, n = 1621 (Model 3). Sex, race, diabetes, age, BMI, household income, serum albumin concentration, HbA1c, serum triglyceride concentration and HOMA-IR were tested in the model. Statistically significant (p < 0.05) variables were selected by backwards elimination and retained in the final model. HOMA-IR, homeostatic model assessment of insulin resistance; IV, independent variables; Mg, magnesium; 2 Changes in serum Mg concentrations associated with diabetes, a 10 years increment in age, a $10 K increment in yearly household income and an increment of 1 for HOMA-IR; 3 Estimates are adjusted for all IV in the model; 4 Continuous variables were transformed using the 5th and 95th percentiles prior to analysis; 5 Diabetics, n = 99.