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. Author manuscript; available in PMC: 2022 Mar 11.
Published in final edited form as: J Pain. 2021 May 24;22(11):1452–1466. doi: 10.1016/j.jpain.2021.04.018

Table 1.

Sociodemographic and Clinical Characteristics of Participants by Ethnicity/Race

NHB (N = 96) NHW (N = 91)
M or N (SD or%) M or N (SD or%) P

Age (y)* 56.5(6.6) 59.6(8.6) .01
Study site .21
 UF 57(47.5) 63(52.5)
 UAB 39(58.2) 28(41.8)
Sex .35
 Female 57(48.3) 61(51.7)
 Male 39(56.5) 30(43.5)
Income* <.01
 $0-$9,999 36(38.7) 18(20.0)
 $10,000-$19,999 15(16.1) 10(11.1)
 $20,000-$29,999 16(17.2) 9(10.0)
 $30,000-$39,999 5(5.4) 3(3.3)
 $40,000-$49,999 3(3.2) 10(11.1)
 $50,000-$59,999 5(5.4) 11(12.2)
 $60,000-$79,999 6(6.5) 9(10.0)
 $80,000-$99,999 4(4.3) 6(6.7)
 $100,000-$149,999 2(2.2) 10(11.1)
 >150,000 1(1.1) 4(4.4)
Education* .02
 Some school, <high school 9(9.4) 4(4.4)
 High school degree 47(49.0) 31(34.1)
 Associates degree 19(19.8) 14(15.4)
 Bachelor's degree 13(13.5) 24(26.4)
 Master's degree 6(6.3) 13(14.3)
 Doctoral/professional 2(2.1) 5(5.5)
Marital status* <.01
 Married 24(25.5) 43(47.3)
 Widowed 10(10.6) 4(4.4)
 Divorce 27(28.7) 26(28.6)
 Separated 8(8.5) 1(1.1)
 Never married 24(25.5) 12(13.2)
 Living with partner 1(1.1) 5(5.5)
Insurance status .58
 No 15(15.6) 15(16.5)
 Yes 81(84.4) 75(82.4)
Knee pain duration .26
<6 mo 4(4.2) 6(6.7)
 6 to 12 mo 10(10.4) 5(5.6)
 1 to 3 y 27(28.1) 19(21.1)
 3 to 5 y 16(16.7) 11(12.2)
 >5 y 39(40.6) 49(54.4)
BMI (kg/m2) 32.9(7.8) 31.2(7.5) .15
Pain catastrophizing* 1.7(1.3) 0.9(1.1) <.01

Abbreviation: NHB, non-Hispanic black; NHW, non-Hispanic white; UF, university of florida; UAB, university of birmingham at alabama; BMI, body mass index.

Note:

*

P < .05.