Table 3. Incidence-Rate Ratios for Premature Death, According to Quartile of Variables*.
| Variable | Premature Death from All Causes | Premature Death from External Causes | Premature Death from Endogenous Causes | |||
|---|---|---|---|---|---|---|
| IRR (95% CI) | P value | IRR (95% CI) | P value | IRR (95% CI) | P value | |
| Body-mass index | 0.02 | 0.35 | <0.01 | |||
| Q2 vs. Q1 | 0.91 (0.72–1.16) | 0.82 (0.62–1.09) | 1.24 (0.77–2.00) | |||
| Q3 vs. Q1 | 1.01 (0.80–1.24) | 0.94 (0.71–1.23) | 1.28 (0.78–2.09) | |||
| Q4 vs. Q1 | 1.31 (1.04–1.66) | 1.06 (0.80–1.40) | 2.30 (1.46–3.62) | |||
| 2-Hour glucose | 0.37 | 0.78 | 0.12 | |||
| Q2 vs. Q1 | 1.10 (0.86–1.40) | 1.00 (0.76–1.32) | 1.43 (0.88–2.30) | |||
| Q3 vs. Q1 | 0.97 (0.75–1.24) | 0.88 (0.66–1.18) | 1.24 (0.75–2.04) | |||
| Q4 vs. Q1 | 1.17 (0.93–1.48) | 1.02 (0.77–1.39) | 1.73 (1.09–2.74) | |||
| Systolic blood pressure | 0.19 | 0.80 | 0.09 | |||
| Q2 vs. Q1 | 0.92 (0.71–1.21) | 0.98 (0.73–1.33) | 0.75 (0.43–1.30) | |||
| Q3 vs. Q1 | 1.15 (0.90–1.48) | 1.11 (0.83–1.49) | 1.26 (0.77–2.07) | |||
| Q4 vs. Q1 | 1.16 (0.91–1.48) | 1.08 (0.81–1.45) | 1.34 (0.83–2.15) | |||
| Diastolic blood pressure | 0.72 | 0.96 | 0.35 | |||
| Q2 vs. Q1 | 1.08 (0.84–1.38) | 1.07 (0.80–1.42) | 1.09 (0.66–1.82) | |||
| Q3 vs. Q1 | 0.99 (0.78–1.27) | 0.99 (0.75–1.32) | 1.00 (0.61–1.64) | |||
| Q4 vs. Q1 | 1.11 (0.88–1.41) | 1.01 (0.76–1.34) | 1.40 (0.89–2.19) | |||
| Total cholesterol | 0.14 | 0.21 | 0.77 | |||
| Q2 vs. Q1 | 1.08 (0.85–1.37) | 1.07 (0.81–1.42) | 1.11 (0.71–1.75) | |||
| Q3 vs. Q1 | 1.04 (0.81–1.32) | 1.01 (0.76–1.34) | 1.11 (0.71–1.75) | |||
| Q4 vs. Q1 | 1.30 (1.02–1.65) | 1.30 (0.99–1.72) | 1.28 (0.81–2.02) | |||
*
Incidence-rate ratios (IRRs) were calculated by means of Poisson regression according to quartiles of variables standardized by age and sex. P values are for linear trends across quartiles. Q denotes quartile.