Table 1.

Participant characteristics by positive event frequency (N = 969)

Participant Characteristics	Mean (SD) or N (%)	Correlation r with positive event frequencya
Demographics
Age	58 (11.5)	0.17***
Female	548 (56.6%)	−0.05
White race	789 (81.4%)	0.16***
Household income, median (IQR)	$58,750 ($64,763)	0.11***
Physical Health, Medications, and Health Behaviors
No. of chronic conditions	4 (2.9)	0.05
Body mass index	29.66 (6.47)	−0.07*
Blood pressure medication use	348 (36%)	−0.01
Cholesterol medication use	271 (28%)	0.03
Corticosteroid medication use	41 (4%)	−0.05
Antidepressant medication use	137 (14%)	0.04
Current smoker	129 (13%)	−0.09**
Regular exercise	747 (77%)	0.02
Psychological covariates
Depressive symptoms (range: 0 – 60)	8.53 (8.19)	−0.18***
Neuroticism (range: 1 – 4)	2.03 (0.64)	−0.11***
Optimism (range: 6 – 30)	23.87 (4.71)	0.26***
Daily positive affect (range: 0 – 4)	2.71 (0.70)	0.15***
Daily negative affect (range: 0 – 4)	0.21 (0.27)	−0.04

^***p ≤ .001,

^**p ≤ .01,

^*p ≤ .05,

^†p ≤ .10

^aPositive event frequency was defined as the percent of days in which the participant experienced at least one positive event.