Obesity and Multisite Pain in the Lower Limbs: Data from the Osteoarthritis Initiative
Table 2
The demographic characteristics of the study participants with the presence or absence of pain in the lower limbs.
Characteristics
All (N = 4,661) Mean ± SD
No or single-site pain (n = 2,946) Mean ± SD
Multisite pain (n = 1,716) Mean ± SD
Age (years)
61.2 ± 9.1
61.4 ± 9.3
61.0 ± 8.9
0.087
BMI (kg/m2)
28.8 ± 4.8
28.4 ± 4.6
29.2 ± 5.0
<0.001
n (%)
n (%)
n (%)
Sex
<0.001
Male
1,944 (41.7)
1,383 (46.9)
561 (32.7)
Female
2,718 (58.3)
1,563 (53.1)
1,155 (67.3)
Race
0.143
Caucasian
3,667 (78.7)
2,337 (79.3)
1,330 (77.5)
African Americans/Asians/other
995 (21.3)
609 (20.7)
386 (22.5)
Educational status
0.366
Primary school or less
167 (3.6)
100 (3.4)
67 (3.9)
High school or more
4,495 (96.4)
2,846 (96.6)
1,649 (96.1)
Marital status
0.012
Married
3,071 (66)
1,980 (67.2)
1,091 (63.6)
Unmarried/divorced/widowed
1,591 (34.1)
966 (32.8)
625 (36.4)
Employment status
0.039
Employed
2,888 (61.9)
1,858 (63.1)
1,030 (40)
Not employed
1,774 (38.1)
1,088 (36.9)
1,030 (60)
Income status
0.002
≥$50,000/year
2,909 (62.4)
1,898 (64.4)
1,011 (58.1)
<$50,000/year
1,753 (37.6)
1,048 (35.6)
705 (41.1)
Charlson comorbidity index
<0.001
0
3,445 (73.9)
2,271 (77.1)
1,174 (68.4)
≥1
1,217 (26)
675 (22.9)
542 (31.6)
Depressive symptoms
<0.001
CESD <16
4,187 (89.8)
2,697 (91.5)
1,490 (86.8)
CESD ≥16
475 (10.2)
249 (8.5)
226 (13.2)
Values are presented as means ± standard deviation (SD). Independent t-test was used to determine values. Values are presented as number (percent). BMI, body mass index; $, the United States dollar; CESD, Center for Epidemiological Studies Depression.
