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Fig. 1 | BMC Women's Health

Fig. 1

From: U-shaped association between serum 25-hydroxyvitamin D concentrations and urinary leakage among adult females aged 45 years and over in the United States: a cross-sectional study

Fig. 1

Flow chart of study participants. Seven cycles of NHANES data including 70,190 individuals from 2005 ~ 2018 were primary screened. 14,588 volunteers with missing serum 25(OH)D concentrations data and 23,312 individuals with missing urinary leakage data were dropped. In addition,15,853 males and 6912 volunteers under the age 45 were excluded. Finally, 9525 females were included in this study

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BMC Women's Health

ISSN: 1472-6874

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