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Table 3 Hazard ratios (HR) and all-cause mortality according to intake categories of Nordic fruits and vegetables stratified by smoking status. From: Non-linear associations between healthy Nordic foods and all-cause mortality in the NOWAC study: a prospective study

From: Non-linear associations between healthy Nordic foods and all-cause mortality in the NOWAC study: a prospective study

All-cause mortality
  Never smokers Ever smokers*
Intake categories of Nordic fruits and vegetables (g/day) Total N No. of deaths HR (95% CI) P for trend Total N No. of deaths HR (95% CI) P for trend
 < 100 6 452 588 1.00 0.10 14 085 1 942 1.00  < 0.001
100–199 11 654 905 0.89 (0.81–0.99) 20 847 2 263 0.86 (0.80–0.91)
200–299 7 232 605 1.03 (0.91–1.15) 11 672 1 182 0.82 (0.76–0.89)
 ≥ 300 4 477 333 1.07 (0.93–1.24) 7 250 689 0.84 (0.76–0.92)
  1. HR hazard ratio, CI confidence interval
  2. Age-adjusted and mutually adjusted for the healthy Nordic food groups, BMI < 20, 20–24.9, 25–29.9, ≥ 30 (kg/m2), physical activity (low, medium, high), education (< 10, 10–12, > 12 years of schooling), intake of energy (kJ/day continuous), alcohol (non-consumer, 0–5, > 5 g/day), and processed red meat (< 15, 15–29, 30–44, ≥ 45 g/day)
  3. *Additionally, adjusted for pack-years