title: No Association between Adherence to a Healthy Nordic Food Index and Colorectal Cancer: Results from a Swedish Cohort Study.
abstract: BACKGROUND
  Recently, the Nordic diet has gained interest, and a healthy Nordic food index has been developed, which has been found inversely related to colorectal cancer among Danish women. This single finding, however, requires replication in other cohorts.
  
  
  METHODS
  We conducted a prospective study in the Women's Lifestyle and Health cohort, including 45,222 women, recruited in 1991-92, and followed up ever since through Swedish registries. Participants were classified according to the Nordic food index (consisting of whole grain bread, oatmeal, apples/pears, cabbages, root vegetables, and fish/shellfish), and the association between adherence and colorectal cancer was assessed using the Cox proportional hazards models.
  
  
  RESULTS
  In the fully adjusted models, we found no association, neither with the continuous index score [incidence rate ratio (IRR), 1.04; 95% confidence interval (CI), 0.95-1.12, per 1-point increment] nor in the categorical analyses (IRR, 1.09; 95% CI, 0.78-1.52 for highest vs. lowest adherers).
  
  
  CONCLUSIONS
  The present study does, thus, not support a previous finding of an inverse association between a healthy Nordic food index and colorectal cancer.
  
  
  CONCLUSIONS
  This article adds new evidence to the field of the Nordic diet in disease prevention.
authors: Danish Cancer Society Research Center, Copenhagen, Denmark. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
authors: Nina
authors: N
authors: Roswall
authors: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Department of Epidemiology and Health Statistics, Zhejiang University, Hangzhou, China.
authors: Yingjun
authors: Y
authors: Li
authors: Danish Cancer Society Research Center, Copenhagen, Denmark.
authors: Cecilie
authors: C
authors: Kyrø
authors: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
authors: Sven
authors: S
authors: Sandin
authors: Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden.
authors: Marie
authors: M
authors: Löf
authors: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts.
authors: Hans-Olov
authors: HO
authors: Adami
authors: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden. Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland. The Cancer Registry of Norway, Oslo, Norway. Elisabete.Weiderpass.Vainio@ki.se.
authors: Elisabete
authors: E
authors: Weiderpass
mesh_terms: D000328:Adult; D015179:Colorectal Neoplasms / Q000453:epidemiology*; D004032:Diet; D005260:Female; D006293:Health Promotion; D006801:Humans; D008875:Middle Aged; D016016:Proportional Hazards Models; D011446:Prospective Studies; D013548:Sweden