Table 1 Descriptive Measures (n = 188), for Full Sample and Stratified by Ethnicity/race
Measure | Summary | Non-Hispanic Black | Non-Hispanic White |
|---|---|---|---|
Age, mean year ± SD | 58.0 ± 7.8 | 56.4 ± 6.5 | 59.6 ± 8.6 |
Gender, %(n) | |||
Female | 63.3% (119) | 59.8% (58) | 67.0% (61) |
Male | 36.7% (69) | 40.2% (39) | 33.0% (30) |
Ethnicity/Race, %(n) | |||
Non-Hispanic Black | 51.6% (97) | – | – |
Non-Hispanic White | 48.4% (91) | – | – |
Highest Education Level, %(n) | |||
Some high school | 6.9% (13) | 9.3% (9) | 4.4% (4) |
High school degree | 41.5% (78) | 48.5% (47) | 34.1% (31) |
Two-year college degree | 17.6% (33) | 19.6% (19) | 15.4% (14) |
Four-year college degree | 19.7% (37) | 13.4% (13) | 26.4% (24) |
Master’s degree | 10.6% (20) | 7.2% (7) | 14.3% (13) |
Doctoral degree | 3.7% (7) | 2.1% (2) | 5.5% (5) |
Household Income, %(n) | |||
$0 - $9999 | 29.3% (54) | 38.3% (36) | 20.0% (18) |
$10,000 - $19,999 | 13.6% (25) | 16.0% (15) | 11.1% (10) |
$20,000 - $29,999 | 14.1% (26) | 18.1% (17) | 10.0% (9) |
$30,000 - $39,999 | 4.4% (8) | 5.3% (5) | 3.3% (3) |
$40,000 - $49,999 | 7.1% (13) | 3.2% (3) | 11.1% (10) |
$50,000 - $59,999 | 8.7% (16) | 5.3% (5) | 12.2% (11) |
$60,000 - $79,999 | 8.2% (15) | 6.4% (6) | 10.0% (9) |
$80,000 - $99,999 | 5.4% (10) | 4.3% (4) | 6.7% (6) |
$100,000 - $149,999 | 6.5% (12) | 2.1% (2) | 11.1% (10) |
$150,000+ | 2.7% (5) | 1.1% (1) | 4.4% (4) |
BMI, mean ± SD | 32.0 ± 7.7 | 32.8 ± 7.8 | 31.2 ± 7.5 |
Study Site, %(n) | |||
University of Florida | 64.4% (121) | 59.8% (58) | 69.2% (63) |
University of Alabama, Birmingham | 35.6% (67) | 40.2% (39) | 30.8% (28) |
Kellgren- Lawrence (KL) Score, %(n) | |||
0 | 29.3% (54) | 29.5% (28) | 29.2% (26) |
1 | 15.8% (29) | 8.4% (8) | 23.6% (21) |
2 | 20.7% (38) | 25.3% (24) | 15.7% (14) |
3 | 16.3% (30) | 16.8% (16) | 15.7% (14) |
4 | 17.9% (33) | 20.0% (19) | 15.7% (14) |
Baseline Pain Characteristics | |||
Frequency: Currently experiencing knee pain on most days, % yes (n) | 47.9% (90) | 50.5% (49) | 45.1% (41) |
Intensity: Graded Chronic Pain Scale (0–100), mean ± SD | 55.8 ± 23.1 | 66.9 ± 20.3 | 43.9 ± 19.8 |
Time/Duration: | |||
< 6 months | 5.4% (10) | 4.2% (4) | 6.7% (6) |
6 months to 1 year | 8.0% (15) | 10.3% (10) | 5.6% (5) |
1 to 3 years | 25.1% (47) | 28.9% (28) | 21.1% (19) |
3 to 5 years | 14.4% (27) | 16.5% (16) | 12.2% (11) |
> 5 years | 47.1% (88) | 40.2% (39) | 54.4% (49) |
Total Pain Sites: Number of painful body sites with pain more than not over last 3 months, mean ± SD | 5.7 ± 3.6 | 5.8 ± 3.7 | 5.5 ± 3.6 |
WOMAC total score, mean ± SD | 36.2 ± 19.9 | 42.9 ± 18.5 | 29.1 ± 18.9 |