Naturally nutrient rich (NNR) score and the risk of colorectal cancer: a case-control study.

IF 3.3 Q2 GASTROENTEROLOGY & HEPATOLOGY BMJ Open Gastroenterology Pub Date : 2023-12-02 DOI:10.1136/bmjgast-2023-001242

Naeemeh Hassanpour Ardekanizadeh, Mahdi Mousavi Mele, Saeideh Mohammadi, Soheila Shekari, Mobina Zeinalabedini, Mohammad Masoumvand, Seyedeh Hayedeh Mousavi Shalmani, Seyed Ali Askarpour, Maryam Gholamalizadeh, Farhad Vahid, Saeid Doaei

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Abstract

Background: The association between colorectal cancer (CRC) and nutrients has been studied frequently. However, the association of nutrient density of diets with the risk of CRC has been less studied. This study aimed to investigate the association between CRC and naturally nutrient rich (NNR) score in Iranian adults.

Method: This case-control study included 160 patients with colorectal cancer and 320 controls aged 35-70 years in Tehran, Iran. Dietary intake was assessed using a 168-item food frequency questionnaire. The NNR score was obtained by calculating the average daily value of 14 nutrients including protein, vitamins A, C, D, E, B₁, B₂, B₁₂, calcium, zinc, iron, folate, potassium and unsaturated fatty acids.

Results: Regarding dietary intake of the components of NNR score, the case group had a lower intake of polyunsaturated fat (15.41±4.44 vs 16.54±4.20 g/day, p=0.01), vitamin E (10.15±4.16 vs 13.1±5.33; p=0.001), vitamin B₁ (2±0.86 vs 2.19±0.84 mg/day, p=0.03) and folate (516.45±96.59 vs 571.05±80.31; p=0.001) and a higher intake of oleic acid (8.21±5.46 vs 5.59±3.17 g/day, p=0.01) compared with the control group. Colorectal cancer risk was inversely associated with the NNR score after adjusting for the confounders (OR 0.92; 95% CI 0.88 to 0.97; p=0.03).

Conclusion: Low NNR scores may be linked to CRC. If confirmed by future longitudinal research, this result may help prevent CRC by recommending nutrient-rich diets.

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自然营养丰富(NNR)评分与结直肠癌风险:一项病例对照研究。

背景:人们经常研究结直肠癌(CRC)与营养物质之间的关系。然而，饮食营养密度与结直肠癌风险之间的关系研究较少。本研究旨在调查伊朗成年人CRC与自然营养丰富(NNR)评分之间的关系。方法:本病例对照研究纳入了伊朗德黑兰年龄在35-70岁之间的160例结直肠癌患者和320例对照患者。膳食摄入量评估采用168项食物频率问卷。NNR评分是通过计算蛋白质、维生素A、C、D、E、B1、B2、B12、钙、锌、铁、叶酸、钾和不饱和脂肪酸等14种营养素的日均摄入量得出的。结果:在NNR评分组分的膳食摄入量方面，病例组多不饱和脂肪(15.41±4.44 vs 16.54±4.20 g/d, p=0.01)、维生素E(10.15±4.16 vs 13.1±5.33;p=0.001)、维生素B1(2±0.86 vs 2.19±0.84 mg/d, p=0.03)和叶酸(516.45±96.59 vs 571.05±80.31;P =0.001)和较高的油酸摄入量(8.21±5.46 g/d vs 5.59±3.17 g/d, P =0.01)。校正混杂因素后，结直肠癌风险与NNR评分呈负相关(OR 0.92;95% CI 0.88 ~ 0.97;p = 0.03)。结论:低NNR评分可能与结直肠癌有关。如果未来的纵向研究证实，这一结果可能有助于通过推荐营养丰富的饮食来预防结直肠癌。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BMJ Open Gastroenterology GASTROENTEROLOGY & HEPATOLOGY-

CiteScore

5.90

自引率

3.20%

发文量

审稿时长

2 weeks

期刊介绍： BMJ Open Gastroenterology is an online-only, peer-reviewed, open access gastroenterology journal, dedicated to publishing high-quality medical research from all disciplines and therapeutic areas of gastroenterology. It is the open access companion journal of Gut and is co-owned by the British Society of Gastroenterology. The journal publishes all research study types, from study protocols to phase I trials to meta-analyses, including small or specialist studies. Publishing procedures are built around continuous publication, publishing research online as soon as the article is ready.