Pediatrics international : official journal of the Japan Pediatric Society · 2022
The impact of vitamin D on the onset and progress of Kawasaki disease.
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Okazaki Natsumi, Ikeda Hiroyuki, Honda Takafumi, Tsuno Kazuma, Inoue Fumiya, Takahashi Satoko, Sakurai Ayako, Ueki Hideaki, Noguchi Yasushi, Hamada Hiromichi, Igarashi Shunji
Аннотация
BACKGROUND: The seasonal epidemic of Kawasaki disease (KD) in winter in Japan suggests that low vitamin D status may affect KD through the immune system. We aimed to evaluate the effect of vitamin D on the onset and clinical course of KD.
METHODS: We conducted a case-control study to compare 25-hydroxyvitamin D (25(OH)D) levels in KD patients admitted to our hospital between March 2018 and June 2021, with those in healthy controls from published Japanese data. In patients with KD, we evaluated the association of 25(OH)D levels with intravenous immunoglobulin resistance and coronary artery lesions.
RESULTS: We compared 290 controls and 86 age-group-adjusted patients with KD. The 25(OH)D levels in KD patients were lower than those in the controls (median: 17 vs. 29 ng/mL, P < 0.001). In winter, 25(OH)D levels in KD patients were lower than those in summer (median: 13 vs. 19 ng/mL). The adjusted odds ratios for the onset of KD were 4.9 (95% CI: 2.5-9.6) for vitamin D insufficiency (25(OH)D: 12-20 ng/mL) and 29.4 (95% CI: 12.5-78.2) for vitamin D deficiency (25(OH)D < 12 ng/mL). Among 110 KD patients, 25(OH)D levels at diagnosis of KD were not associated with intravenous immunoglobulin resistance or coronary artery lesions.
CONCLUSIONS: The 25(OH)D levels in patients with KD were lower than those in the controls, especially in winter. Lower 25(OH)D levels in winter were associated with an increased risk of KD onset. It remains to be elucidated whether the observed association has a causal relationship.
METHODS: We conducted a case-control study to compare 25-hydroxyvitamin D (25(OH)D) levels in KD patients admitted to our hospital between March 2018 and June 2021, with those in healthy controls from published Japanese data. In patients with KD, we evaluated the association of 25(OH)D levels with intravenous immunoglobulin resistance and coronary artery lesions.
RESULTS: We compared 290 controls and 86 age-group-adjusted patients with KD. The 25(OH)D levels in KD patients were lower than those in the controls (median: 17 vs. 29 ng/mL, P < 0.001). In winter, 25(OH)D levels in KD patients were lower than those in summer (median: 13 vs. 19 ng/mL). The adjusted odds ratios for the onset of KD were 4.9 (95% CI: 2.5-9.6) for vitamin D insufficiency (25(OH)D: 12-20 ng/mL) and 29.4 (95% CI: 12.5-78.2) for vitamin D deficiency (25(OH)D < 12 ng/mL). Among 110 KD patients, 25(OH)D levels at diagnosis of KD were not associated with intravenous immunoglobulin resistance or coronary artery lesions.
CONCLUSIONS: The 25(OH)D levels in patients with KD were lower than those in the controls, especially in winter. Lower 25(OH)D levels in winter were associated with an increased risk of KD onset. It remains to be elucidated whether the observed association has a causal relationship.