Article Publish Status: FREE
Abstract Title:

Association between alterations in the serum 25-hydroxyvitamin d status during follow-up and breast cancer patient prognosis.

Abstract Source:

Asian Pac J Cancer Prev. 2015 ;16(6):2507-13. PMID: 25824788

Abstract Author(s):

Seung Taek Lim, Ye Won Jeon, Young Jin Suh

Article Affiliation:

Seung Taek Lim

Abstract:

BACKGROUND: Serum vitamin D status can affect the prognosis of breast cancer patients. Our aim was to determine the association between alterations in the 25-hydroxyvitamin D [25(OH)D] status during follow-up and the prognosis of breast cancer patients. Additionally, we evaluated the association between the 25(OH)D status at the time of diagnosis and the prognosis using a detailed age and stage categorization.

MATERIALS AND METHODS: Four hundred and sixty-nine Korean breast cancer patients were included. We collected patient clinicopathological data, including their serum 25(OH)D concentration at diagnosis and at the annual follow- up until 4 years after diagnosis. The patients were divided according to their 25(OH)D status at diagnosis into a deficient (<20 ng/ml) and a non-deficient (≥20 ng/ml) group. At follow-up, patients were categorized into the four following groups according to 25(OH)D status alterations: persistently deficient, improved, deteriorated and persistently non-deficient.

RESULTS: At diagnosis, 118 patients were classified into the deficient group and 351 into the non-deficient group. After a median follow-up period of 85.8±31.0 months, the patients with advanced- stage disease or an older age in the non-deficient group showed a significantly better survival compared with the deficient group. Furthermore, at the 1-year follow-up of 25(OH)D status, the persistently non-deficient group and the improved group had bettersurvival compared with the other two groups.

CONCLUSIONS: Our results suggest that maintaining an optimal 25(OH)D status at diagnosis and during the 1-year follow-up period is important for improving breast cancer patient survival.

Study Type : Human Study

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