Table 2.

Linear regression analysis indicates that increases of vitamin A in the chow is significantly associated with lower cortical bone parameters when adjusted for number of weeks of treatment.

	Change per 10 µg/g increase in dose (95% CI)
Cortical BMC (mg/mm)	−0.016 (−0.023, −0.0085)***
Cortical thickness (µm)	−0.0012 (−0.0023, −0.0001)*
Periosteal circumference (mm)	−0.040 (−0.053, −0.026)***
Endocortical circumference (mm)	−0.032 (−0.047, −0.017)***

Values given as change per 10 µg/g increase in dose with 95% confidence intervals (95% CI).

*P < 0.05, ***P < 0.001.