. Author manuscript; available in PMC: 2014 Apr 1.

Published in final edited form as: J Biol Rhythms. 2013 Apr;28(2):117–129. doi: 10.1177/0748730413478552

Table 1.

Characteristics of the Study Participants

Characteristic	Males (n=192)	Females (n=298)	p-value
Source Cohort (MAP/ROS; number [%])	73 [38%]/119 [62%]	118 [40%]/180 [60%]	0.80
Age at Death (years; mean [SD])	85.7 [6.4]	88.8 [6.5]	<0.0001
Dementia (number [%])	74 [39.7%]	118 [38.8%]	0.75
Depressive Symptoms (number; median [IQR])	1 [0–3]	1 [0–2]	0.74
Time of Death (hh:mm; mean [SD])	11:04 [6:18]	12:49 [6:35]	0.32
Postmortem Interval (hours; mean [SD])	7.0 [7.0]	6.9 [4.8]	0.92
Season of Death (summer/winter; number [%])	94 [49%]/98 [51%]	137 [46%]/161 [54%]	0.58
Daylight/Standard Time at Death (number [%])	107 [56%]/85 [44%]	164 [55%]/134 [45%]	0.95

Abbreviations: SD = Standard Deviation; IQR = Interquartile Range