TABLE 2.
Association between potato consumption and mortality
| Basic-adjusted model1 |
Fully adjusted model2 |
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| Incidence (number of deaths/1000 person-years) (95% CI) | HR (95% CI) | P | HR (95% CI) | P | |
| ≤1 time/mo | 6 (3, 10) | 1 (reference) | 1 (reference) | ||
| 2–3 times/mo | 12 (4, 19) | 1.04 (0.65, 1.64) | 0.89 | 1.16 (0.72, 1.87) | 0.54 |
| 1 time/wk | 10 (6, 14) | 1.21 (0.76, 1.40) | 0.43 | 1.34 (0.82, 2.18) | 0.24 |
| 2 times/wk | 16 (9, 22) | 1.36 (0.86, 2.15) | 0.18 | 1.59 (0.98, 2.57) | 0.06 |
| ≥3 times/wk | 18 (7, 29) | 0.94 (0.56, 1.56) | 0.80 | 1.11 (0.65, 1.91) | 0.71 |
1
The basic-adjusted model included as covariates age (continuous) and sex.
2
The fully adjusted model included as covariates age (continuous), sex, race/ethnicity (white vs. other), BMI (continuous), education (degree vs. others), smoking habits (current and previous vs. others), yearly income (categorized as ≥$50,000, <$50,000, or missing data), Physical Activity Scale for Elderly score (continuous), Charlson comorbidity index (continuous), daily energy intake (continuous), alcohol consumption (weekly), adherence to a Mediterranean diet, and Center for Epidemiologic Studies–Depression scale (continuous).