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. 2019 Mar 15;1(1):16–25. doi: 10.1002/acr2.1002

Table 1.

Demographic and clinical characteristics of participants across race/ethnicity

Overall N = 201 NHB N = 105 NHW N = 96 P
M or N (SD or %) M or N (SD or %) M or N (SD or %)
Age (years) 57.9(7.7) 56.4(6.5) 59.6(8.5) 0.004
Sex 0.277
Female 123(61.2) 60(57.1) 63(65.6)
Male 78(38.8) 45(42.9) 33(34.4)
Race
NHB 105(52.2)
NHW 96(47.8)
Income a <0.001
<$20,000 86(42.8) 58(56.9) 28(29.5)
$20,000‐39,999 37(18.4) 23(22.5) 14(14.7)
$40,000‐59,999 31(15.4) 8(7.8) 23(24.2)
$60,000‐99,999 26(12.9) 10(9.8) 16(16.8)
>$100,000 17(8.5) 3(2.9) 14(14.7)
Education 0.002
Some high school 14(7.0) 12(11.4) 2(2.1)
High school degree 86(42.8) 51(48.6) 35(36.5)
Associates or Bachelors 72(35.8) 33(31.4) 39(40.6)
Graduate/professional 29(14.4) 9(8.6) 20(20.8)
Marital status a 0.001
Married 69(34.3) 24(23.3) 45(47.4)
Not married 129(64.2) 79(76.7) 50(52.6)
Employment 0.002
Employed 80(39.8) 42(40.0) 38(39.6)
Not employed 72(35.8) 47(44.8) 25(26.0)
Retired 49(24.4) 16(15.2) 33(34.4)
Knee pain duration a 0.384
<1 year 26(12.9) 15(14.4) 11(11.7)
1 to 5 years 79(39.3) 45(43.3) 34(36.2)
>5 years 93(46.3) 44(42.3) 49(52.1)
BMI (kg/m2) 31.9(7.7) 33.0(7.9) 30.7(7.2) 0.036
Testing site 0.185
UF 132(65.7) 64(61.0) 68(70.8)
UAB 69(34.3) 41(39.0) 28(29.2)

Abbreviation: BMI, body mass index; NHB, non‐Hispanic black; NHW, non‐Hispanic white; UAB, University of Alabama at Birmingham; UF, University of Florida.

a

Some data not reported.