Table 4.

Adjusted Odds Ratios^* (95% Confidence Interval) for associations between neck (top) or shoulder (bottom) symptoms and symptoms at other joint sites

Symptoms at other sites	n(%)	Mild neck symptoms OR (95% CI)†	Moderate/severe neck symptoms OR (95% CI)†
Shoulder	415 (25.3)	5.1 (3.6. 7.3)	12.1 (8.5,17.2)
Foot	357 (24.2)	2.1 (1.4. 3.0)	3.8 (2.7, 5.3)
Knee	645 (39.4)	2.3 (1.6. 3.3)	3.4 (2.4, 4.7)
Hip	483 (29.5)	3.4 (2.4. 4.8)	6.1 (4.4, 8.5)
Hand	600 (36.6)	3.6 (2.5. 5.1)	6.0 (4.3, 8.5)
Mid-back	190 (12.9)	3.5 (2.3. 5.4)	6.6 (4.5, 9.6)
Low-back	603 (40.9)	5.4 (3.7. 7.9)	6.6 (4.6, 9.4)
	n (%)	Mild shoulder symptoms OR (95% CI)	Moderate/severe shoulder symptoms OR (95% CI)
Neck	341 (20.8)	5.8 (4.1. 8.2)	10.4 (7.6,14.4)
Foot	357 (24.2)	2.7 (1.9. 3.9)	3.8 (2.8, 5.2)
Knee	656 (39.2)	2.8 (2.1. 3.9)	3.5 (2.5, 4.7)
Hip	496 (29.7)	3.5 (2.5. 4.8)	5.0 (3.7, 6.7)
Hand	608 (36.4)	3.6 (2.6. 5.0)	5.2 (3.8, 7.0)
Mid-back	190 (12.9)	5.2 (3.4. 8.0)	6.9 (4.8,10.1)
Low-back	603 (40.9)	3.3 (2.3. 4.5)	5.1 (3.7, 7.1)

^*Odds ratios adjusted for age, BMI, gender, race, where neck/shoulder symptoms are the independent variables and other body sites symptoms are the dependent (outcome) variables; all associations are statistically significant

^†The reference group is those without symptoms

For shoulder, knee, hip, and hand n=1672; for foot, mid and low back, n=1473; for neck n=1638