Table 2.
Multivariate logistic regression analysis results for three health outcomes for all subjects at three time points.
| Six (6) months | 18 months | 36 months | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Severe UE symptoms (n=961) OR (95% CI) | Work Impairment (n=944) OR (95% CI) | Diagnosis of UE MSD (n=969) OR (95% CI) | Severe UE symptoms (n=926) OR (95% CI) | Work Impairment (n=912) OR (95% CI) | Diagnosis of UE MSD (n=932) OR (95% CI) | Severe UE symptoms (n=876) OR (95% CI) | Work Impairment (n=868) OR (95% CI) | Diagnosis of UE MSD (n=884) OR (95% CI) | |
| Grip | |||||||||
| Below 1 SD | 0.99 (0.70-1.42) | 1.13 (0.74-1.72) | 1.27 (0.38-2.14) | 0.77 (0.54-1.10) | 0.80 (0.53-1.22) | 1.06 (0.54-2.09) | 0.92 (0.64-1.32) | 0.72 (0.46-1.13) | 1.27 (0.65- 2.50) |
| Within 1 SD | Reference | Reference | Reference | Reference | Reference | Reference | Reference | Reference | Reference |
| Above 1 SD | 1.79 (1.11-2.89)* | 1.73 (0.99-3.00) | 2.15 (0.85-5.46) | 0.94 (0.57-1.55) | 1.21 (0.69-2.13) | 1.18 (0.48-3.11) | 1.06 (0.63-1.78) | 1.38 (0.78-2.44) | 1.62 (0.65-4.04) |
| Covariates | |||||||||
| Age (per yr) | 1.01 (1.00-1.03) | 1.00 (0.98-1.02) | 1.02 (1.00-1.04)* | 1.02 (1.00-1.03) | 1.00 (0.98-1.02) | 1.01 (0.99-1.03) | |||
| BMI (per kg/cm2) | 1.10 (0.97-1.25) | 1.09 (0.94-1.27) | 1.04 (0.92-1.18) | 0.97 (0.84-1.12) | 1.09 (0.96-1.23) | 1.01 (0.88-1.18) | |||
| Gender (Ref: male) | 1.55 (1.05-2.30)* | 1.70 (1.04-2.78)* | 1.59 (1.09-2.33)* | 2.14 (1.34-3.43)* | 2.05 (1.35-3.11)* | 1.41 (0.87-2.29) | |||
| Past medical historya | 1.76 (1.04-2.97)* | 1.52 (0.82-2.81) | 1.44 (0.8-2.43) | 2.16 (1.23-3.79)* | 1.71 (0.98-2.96) | 1.98 (1.08-3.62)* | |||
| Prior MSD diagnosisb | 1.79 (1.25-2.56)* | 1.90 (1.27-2.84)* | 1.48 (1.03-2.13)* | 1.89 (1.26-2.82)* | 1.65 (1.14-2.39)* | 1.96 (1.29-2.99)* | |||
| Job Category | |||||||||
| Office/technical | Reference | Reference | Reference | Reference | Reference | Reference | |||
| Service | 0.84 (0.57-1.24) | 1.16 (0.72-1.88) | 1.06 (0.73-1.54) | 1.81 (1.16-2.84)* | 1.79 (1.20-2.67)* | 2.93 (1.80-4.75)* | |||
| Construction | 1.61 (1.04-2.51)* | 2.26 (1.30-3.91)* | 1.53 (1.00-2.37) | 2.66 (1.54-4.62)* | 3.06 (1.90-4.93)* | 2.94 (1.65-5.26)* | |||
UE MSD upper extremity musculoskeletal disorder, OR odds ratio, CI confidence interval, SD standard deviation, BMI body mass index
*
Notes significant results based on a p-value < 0.05
a
Includes diabetes, arthritis, thyroid disease, gout, or fibromyalgia.
b
Tendinitis of shoulder or distal arm, rotator cuff disorder, ganglion cyst, or sprain/strain of shoulder or distal arm.