Table 2:

Relationship between BMI and age of onset of menses

	Without head motion parameters1				With head motion parameters2
	b	SE	t	p	b	SE	t	p
Intercept	29.06	2.76	10.52	0.00	21.42	21.43	10.06	0.00
Motion					101.36	5.24	19.33	0.00
Menstrual age began (y)	−0.56	0.15	−3.74	0.00	−0.47	0.11	−4.09	0.00
Age (y)	0.13	0.07	1.86	0.06	0.05	0.05	1.06	0.29
Native American or Alaskan†	4.77	5.33	0.89	0.37	0.10	4.04	0.03	0.98
Asian, Native Hawaiian, or Pacific Islander†	−3.89	0.98	−3.95	0.00	−2.92	0.74	−3.91	0.00
Black or African American†	3.29	0.66	4.96	0.00	1.04	0.51	2.01	0.04
More than one race†	0.07	1.57	0.04	0.96	−0.50	1.19	−0.42	0.67
Unknown or chose not to report†	2.85	1.70	1.67	0.73	1.10	1.29	0.91	0.36

^†Race was coded as a categorical variable with White as the referent category