25OHD	25-hydroxyvitamin D
ALP	Alkaline phosphatase
ALSPAC	Avon Longitudinal Study of Parents and Children
BMI	Body mass index
BOOST	Bone Outcomes, Obesity, Sunlight, and Trauma in Children
CDC	Centers for Disease Control and Prevention
CI	Confidence interval
dF	Degrees of freedom
LMS	Lambda–mu–sigma method
OR	Odds ratio
PTH	Parathyroid hormone
SD	Standard deviation
SE	Standard error
VIF	Variance inflation factor