Appendix 1—table 4. General linear model: reduced form including only significant (p<0.05) predictors of Tsimane women’s thoracic vertebral BMD.

Parameter	Std. β	p
Short mean IBI (<29.7 months; vs. ≥ 29.7)	−0.201	0.032
Age at 1st birth (years, logged)	0.109	0.022
Age (years)	−0.663	<0.001
Fat-free mass (kg)	0.105	0.031
Adjusted R2	0.517
N	212