ArticleBMC nutrition2026
The association between Nutrient-Rich food score (NRFS) and the odds of lung cancer risk: a case-control study in Iran.
Article in BMC nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA high-quality diet is an important strategy for preventing chronic diseases, including cancer. The Nutrient Rich Food Score (NRFS) is a very useful index that can compare the value of key micronutrients and macronutrients per calorie. The purpose of this study is to investigate the relationship of this index with the risk of lung cancer based on gender for the first time.
methodThis paper is a hospital-based case-control study that includes 135 newly diagnosed lung cancer patient and 237 sex- and age-matched individuals in Iran. A 147-item food frequency questionnaire (147-item-FFQ) was used to assess participants' dietary intake. Multivariate Logistic regression was used to assess the odds ratio (OR) with 95% confidence interval (CI) of lung cancer by the Nutrient Rich Food Score tertiles.
resultsAfter adjustment for potential confounders, a high Nutrient-Rich Food Score was associated with a reduced risk of lung cancer (OR = 0.37, 95% CI: 0.19-0.74). Consistent with the overall result, the protective association remained for men (OR = 0.22, 95% CI: 0.08-0.61), while this relationship failed to reach significant level for women (OR = 0.46, 95% CI: 0.16-1.32).
conclusionThe results showed that a high NRFS is associated with a decrease in lung cancer risk. After stratifying by sex, the association was the same for men, but null among women.
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.