. Author manuscript; available in PMC: 2019 Jul 15.

Published in final edited form as: Exp Gerontol. 2018 Apr 25;108:166–173. doi: 10.1016/j.exger.2018.04.013

Table 2.

Demographic characteristics of patients in each study.

First author and year	Gender (m/f)	Age (years)	BMI (kg/m²)	Education (years)
Watanabe et al., 2002	19/5	24.4 (sd = 9.1)	NR	NR
Rae et al., 2003	12/33	27.5(19–37)for males 24.9(19–40) for females	NR	NR
McMorris et al., 2007a	16/16	76.4 (8.48)	NR	Same
Rawson et al., 2008	13/9	20.8 (2.2)	25.5 (2.65)	NR
Ling et al., 2009	22/12	21 (1.4)	NR	NR
Benton and Donohoe, 2011	0/121	20.3 (SE= 2.1)	NR	NR

Data is reported as mean (SD) in most studies.

In McMorris et al. study, data is reported as mean (SE).

In Rae et al. study, data is reported as median (range) separately for males and females.