Nutritional risk factors and status of serum 25(OH)D levels in patients with breast cancer: A case control study in India.
To study the nutritional risk factors and status of serum 25(OH)D levels in patients with breast cancer. A total of 100 women (cases) with confirmed breast cancer (BC) matched with equal number of healthy females (controls) of similar age and socioeconomic status (SES) were included in study. Controls included were nonbreast cancer patients who accompanied the patients to a tertiary care hospital. All the subjects (cases and controls) were administered a questionnaires to collect data on socioeconomic status, dietary pattern and the frequency of food consumption using a validated food frequency questionnaire. Anthropometric assessment was done for waist and hip circumference to calculate waist to hip ratio (WHR). Non fasting blood samples were collected for serum 25-hydroxyvitamin D [25(OH)D] levels estimation using chemiluminescent immunoassay technique and total serum calcium levels by colorimetric assay technique. Serum 25(OH)D and total calcium levels were expressed in ng/ml and mg/dl. Vitamin D deficiency was defined as per the guidelines set by United States Endocrine Society. The mean age of cases and controls was 45±9 and 46±10 years respectively. On multivariate analysis, an inverse association with BC was found for less frequency of fruits consumption with an adjusted (ORs, 95% CI) (2.7, 0.5-15.7) respectively. Mushroom intake was inversely associated with risk of BC (ORs, 95% CI) (5.6, 1.9-16.6). Saturated fat intake and high WHR were significantly associated with high risk of BC with adjusted ORs, 95% CI of (3.4, 1.4-8.1) and (5, 1.4-17). A significant association (p<0.05) was found between low serum 25(OH)D levels and the risk of BC with adjusted ORs, 95% CI of (2.5, 0.9-7.4). Majority of the patients with BC were suffering from vitamin D deficiency. Dietary intake of mushrooms containing vitamin D naturally was found to be associated with decreased risk of breast cancer. A significant association was found between low serum 25(OH)D levels (<20ng/ml) with the risk of BC. Obesity as a consequence of nutritional risk factors determined by higher WHR was found to be significantly associated with the risk of BC.
Department of Food Science and Nutrition, Faculty of Home Science, Banasthali University, Tonk, Rajasthan, India. Electronic address: nighatyasinsufi@gmail.com.
Nighat Y
NY
Sofi
Department of Food Science and Nutrition, Faculty of Home Science, Banasthali University, Tonk, Rajasthan, India.
Monika
M
Jain
Department of Human Nutrition, All India Institute of Medical Sciences, New Delhi-110029, India.
Umesh
U
Kapil
Department of Surgical Disciplines, All India Institute of Medical Sciences, New Delhi-110029, India.
Vuthaluru
V
Seenu
Department of Biostatistics, All India Institute of Medical Sciences, New Delhi-110029, India.
Vineet Kumar
VK
Kamal
Department of Biostatistics, All India Institute of Medical Sciences, New Delhi-110029, India.
Ravinder Mohan
RM
Pandey
D000328:Adult; D000363:Agaricales / Q000737:chemistry; D001943:Breast Neoplasms / Q000097:blood* / Q000150:complications / Q000175:diagnosis / Q000473:pathology; D002118:Calcium / Q000097:blood; D016022:Case-Control Studies; D005247:Feeding Behavior; D005260:Female; D005638:Fruit / Q000737:chemistry; D006801:Humans; D008875:Middle Aged; D060787:Neoplasm Grading; D009765:Obesity / Q000503:physiopathology; D012307:Risk Factors; D012923:Social Class; D011795:Surveys and Questionnaires; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood; D014808:Vitamin D Deficiency / Q000097:blood* / Q000150:complications / Q000175:diagnosis / Q000473:pathology
D014807:Vitamin D; C104450:25-hydroxyvitamin D; D002118:Calcium
25(OH)D; Breast cancer; Calcium; India; Nutritional risk factors; Vitamin D