Table 1.
Demographics and pre-surgical work characteristics
| Variable | Total Hip Arthroplasty | Total Knee Arthroplasty | Overall | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (n = 325) | (n =311) | (n = 636) | ||||||||||
| Mean | SD | Min | Max | Mean | SD | Min | Max | Mean | SD | Min | Max | |
| Age (years) | 61.1 | 8.8 | 29.0 | 85.0 | 63.2 | 7.3 | 43.0 | 83.0 | 62.1 | 8.2 | 29.0 | 85.0 |
| BMI (kg/m2) | 28.6 | 6.1 | 18.1 | 51.6 | 31.2 | 6.3 | 18.7 | 64.1 | 29.9 | 6.3 | 18.1 | 64.1 |
| SANE score * | 41.4 | 21.3 | 0.0 | 95.0 | 43.2 | 21.4 | 1.0 | 98.0 | 42.2 | 21.3 | 0.0 | 98.0 |
| Sex | Number (%) | Number (%) | Number (%) | |||||||||
| Female | 182 | 56.0% | 170 | 54.7% | 352 | 55.3% | ||||||
| Male | 143 | 44.0% | 141 | 45.3% | 284 | 44.7% | ||||||
| Race/Ethnicity | Number (%) | Number (%) | Number (%) | |||||||||
| Asian | 3 | 0.9% | 4 | 1.3% | 7 | 1.1% | ||||||
| Black | 17 | 5.2% | 9 | 2.9% | 26 | 4.1% | ||||||
| Hispanic | 8 | 2.5% | 8 | 2.6% | 16 | 2.5% | ||||||
| White | 281 | 86.5% | 279 | 89.7% | 560 | 88.1% | ||||||
| Other | 12 | 3.7% | 13 | 4.2% | 25 | 3.9% | ||||||
| Missing | 12 | 3.7% | 6 | 1.9% | 18 | 2.8% | ||||||
| Employment | Number (%) | Number (%) | Number (%) | |||||||||
| Yes, full-time | 237 | 72.9% | 228 | 73.3% | 465 | 73.1% | ||||||
| Yes, part-time | 30 | 9.2% | 28 | 9.0% | 58 | 9.1% | ||||||
| Self-employed | 58 | 17.8% | 55 | 17.7% | 113 | 17.8% | ||||||
| Job Accomodations | Number (%) | Number (%) | Number (%) | |||||||||
| Someone to help you out | 12 | 3.7% | 9 | 2.9% | 21 | 3.3% | ||||||
| Shorter work day | 5 | 1.5% | 5 | 1.6% | 10 | 1.6% | ||||||
| More breaks and rest periods | 7 | 2.2% | 9 | 2.9% | 16 | 2.5% | ||||||
| Special transportation | 5 | 1.5% | 2 | 0.6% | 7 | 1.1% | ||||||
| Special equipment | 11 | 3.4% | 5 | 1.6% | 16 | 2.5% | ||||||
| Change time to start and stop work | 21 | 6.5% | 21 | 6.8% | 42 | 6.6% | ||||||
| Change job to somehting you can do | 6 | 1.8% | 4 | 1.3% | 10 | 1.6% | ||||||
| Learn new skills | 1 | 0.3% | 1 | 0.3% | 2 | 0.3% | ||||||
| None | 234 | 72.0% | 231 | 74.3% | 465 | 73.1% | ||||||
| Missing | 23 | 7.1% | 24 | 7.7% | 47 | 7.4% | ||||||
|
Presenteeism (0: Worst, 10: Top) How would you rate the usual performance of… |
Mean | SD | Min | Max | Mean | SD | Min | Max | Mean | SD | Min | Max |
| … most workers in a job similar to yours? | 8.00 | 1.49 | 3.00 | 10.00 | 7.93 | 1.63 | 0.00 | 10.00 | 7.96 | 1.56 | 0.00 | 10.00 |
| … your usual job performance over the past year or two? | 8.68 | 1.35 | 3.00 | 10.00 | 8.74 | 1.29 | 4.00 | 10.00 | 8.71 | 1.32 | 3.00 | 10.00 |
| … your overal job performance on the days you worked during the past 4 weeks (28 days)? | 7.78 | 2.03 | 0.00 | 10.00 | 7.99 | 1.99 | 0.00 | 10.00 | 7.89 | 2.01 | 0.00 | 10.00 |
|
Absenteeism (28-Day Recall) ** In the past 4 weeks (28 days), how many days did you. |
Mean | SD | Min | Max | Mean | SD | Min | Max | Mean | SD | Min | Max |
| … miss work because of problems with your physical or mental health? | 1.61 | 4.30 | 0.00 | 28.00 | 1.16 | 3.65 | 0.00 | 28.00 | 1.39 | 4.00 | 0.00 | 28.00 |
| … miss work because of problems with a family member’s physical or mental health? | 0.31 | 1.12 | 0.00 | 10.00 | 0.16 | 0.80 | 0.00 | 10.00 | 0.24 | 1.02 | 0.00 | 10.00 |
| … miss work for any othe reason (including vacation)? | 2.00 | 3.70 | 0.00 | 28.00 | 2.20 | 4.30 | 0.00 | 28.00 | 2.10 | 4.00 | 0.00 | 28.00 |
| … come in early, go home late, work extra from home, or work on your day off? | 6.07 | 7.78 | 0.00 | 28.00 | 5.41 | 7.16 | 0.00 | 28.00 | 5.75 | 7.48 | 0.00 | 28.00 |
| Absenteeism (7-Day Recall) *** | Mean | SD | Min | Max | Mean | SD | Min | Max | Mean | SD | Min | Max |
| How many days are you expected to work in a typical 7-day week? | 4.86 | 0.99 | 0.00 | 7.00 | 4.69 | 1.22 | 0.00 | 7.00 | 4.78 | 1.11 | 0.00 | 7.00 |
| How many hours does your employer expect you to work in a typical 7-day week? | 36.67 | 12.72 | 0.00 | 70.00 | 34.64 | 15.24 | 0.00 | 97.00 | 35.68 | 14.03 | 0.00 | 97.00 |
| About how many hours altogether did you work in the past 7 days? | 35.92 | 17.24 | 0.00 | 70.00 | 35.76 | 18.47 | 0.00 | 97.00 | 35.84 | 17.84 | 0.00 | 97.00 |
*
SANE = Single Assessment Numerical Evaluation, n=300, 285, 585
**
n=308, 292, 600
***
n=319, 306, 625