. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Hippocampus. 2015 Jan 20;25(4):534–543. doi: 10.1002/hipo.22390

Table 2.

Model coefficients for exploring photoperiod predicting hippocampal volume

Variables	Total Sample (n=404)
Variables	Total	Left	Right
Age	−12.68 (−0.10)^**	−4.49 (−0.07)	−8.18 (−0.12) ^**
	5.06	2.88	2.69
Sex	−190.14 (−0.10)	−121.69 (−0.12)^*	−68.46 (−0.07)
	106.00	60.35	56.30
Race	−206.39 (−0.12)^**	−104.29 (−0.10)^**	−102.10 (−0.11)^**
	70.02	35.35	37.18
ICV	0.002 (0.50)^**	0.001 (0.45)^**	0.001 (0.50)^**
	>0.001	>0.001	>0.001
Photoperiod	37.79 (0.08)^*	23.67 (0.09)^*	14.10 (0.06)
	18.26	10.38	9.70
ΔR²	0.6%^*	0.9%^*	0.3%

Note: All statistics in this table are from block 2 of the analyses. Standardized coefficients listed in parenthesis. Standard error listed on the second line. ICV=Intracranial volume.

p<0.05,

^**

p<0.01