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. 2019 Jan 7;14(1):e0210169. doi: 10.1371/journal.pone.0210169

Table 2. Description of study participants.

Participant Characteristics No. of Participants a
(n = 211)
Percent (%)
Age
 Not elderly (≤ 64) 44 21.1
 Young old (65–75) 101 48.3
 Medium or Oldest old (≥ 76) 64 30.6
Sex
 Male 48 22.7
 Female 163 77.3
Education
 ≤ Middle School 7 3.3
 High school or graduate 88 42.1
 Some college 65 31.1
 ≥ college graduate 49 23.4
Race
 Non-Hispanic White 111 52.6
 Non-Hispanic Black 89 42.2
 Othersb 11 5.2
Income
 Low (< $29,531) 94 51.4
 Lower middle ($29,531–$44,297) 34 18.6
 Middle ($44,294–$88,594) 46 25.1
 High (≥ $88,594) 9 4.9
Living status
 Alone 89 42.6
 With Spouse 77 36.8
 Othersc 43 20.6
Marital status
 Married 79 37.4
 Divorced/Separated 48 22.7
 Widowed 69 32.7
 Never married 15 7.1
Comorbidity class
 0 82 38.9
 1 62 29.4
 2 67 31.8
Disease duration (hypertension) Mean (SD) 211 11.6 (8.5)

Notes:

aFor some variables, the total is less than 211 due to missing values.

bOthers include Asian, Indian, Pacific islanders, or Alaskan natives.

cOthers include living with other family members (daughter or son, sister or brother, mother, grandson or pets) or companion.

SD: standard deviation.