Table A-2.
Adjusted quantile regression results for differences in median days (and inter-quartile range) for surgical wait time among injured workers undergoing knee meniscectomy or meniscal repair surgery by surgical setting and expedited status. The regression coefficients represent the difference in days relative to the median number of days for the public, non-expedited group, by individuals in the 25th, 50th and 75th percentiles, respectively.
| 25th Percentile | 50th Percentile | 75th Percentile | ||
|---|---|---|---|---|
| Coefficient [95% CI]1 | Coefficient [95% CI]1 | Coefficient [95% CI]1 | ||
| Surgical Setting and Expedited Status | Public hospital; non-expedited Private clinic; expedited |
REF −5.67 [−12.18, 0.85] −5.67 [−12.11, 0.78] |
REF −12.50 [−18.77, −6.23]*** −14.00 [−20.00, −8.00]** |
REF −34.00 [−50.93, −7.07]*** −33.00 [−49.38, −16.62]*** |
| Public hospital; expedited | ||||
| Gender | Women vs. Men | −0.33 [−3.99, 3.32] | 2.75 [−1.26, 6.76] | −1.00 [−6.71, 4.71] |
| Age | <30 years 30−40 years 40−50 years 50−65 years |
REF −3.67 [−10.02, 2.68] 1.00 [−5.70, 7.70] 0.67 [−5.71, 7.05] |
REF −2.00 [−8.95, 4.95] −0.75 [−7.60, 6.10] −0.75 [−8.01, 6.51] |
REF 1.00 [−11.07, 13.07] −2.00 [−12.58, 8.58] 0.00 [−11.19, 11.19] |
| Wage | <$30,000 $30−$40,000 $40−$50,000 $50−$60,000 >$60,000 |
REF 1.00 [−3.16, 5.16] 1.33 [−3.97, 6.64] 0.00 [−4.21, 4.21] 0.33 [−4.29, 4.95] |
REF 2.25 [−1.87, 6.37] 0.00 [−4.49, 4.49] −0.75 [−5.38, 3.88] 0.25 [−3.82, 4.32] |
REF −1.00 [−8.44, 6.44] −2.00 [−9.82, 5.82] −5.00 [−12.45, 2.45] −4.00 [−11.46, 3.46] |
| Health Authority | Vancouver Coastal Vancouver Island Interior Fraser Northern |
REF 0.00 [−5.27, 5.27] −5.00 [−9.82, −0.18]* 3.33 [−1.42, 8.08] −5.67 [−12.93, 1.60] |
REF −3.50 [−9.30, 2.30] −4.75 [−10.11, 0.61] 4.50 [−1.18, 10.18] −4.75 [−14.07, 4.57] |
REF −10.00 [−19.19, −0.81]* −11.00 [−20.76, −1.24]* −1.00 [−10.58, 8.58] −11.00 [−22.26, 0.26] |
| Constant | 18.33 [9.84, 26.83]*** | 37.50 [28.91, 46.09]*** | 80.00 [62.03, 97.97]*** | |
* p<0.05, ** p<0.01, *** p<0.001
1 95% confidence intervals in brackets. Standard errors were obtained via bootstrap estimation based on re-sampling at the level of the surgeon (using scrambled surgeon identifier obtained from WorkSafeBC surgical/clinical data).