Table 4

Adjusted quantile regression for differences in time-loss days until full sustainable RTW 1 year after the first time-loss day,* by MSD

Torso sprainsUpper extremity fracturesRheumatism
Calendar days off work for workers without GRTW (95% CI)†Coefficient (additional calendar days off work for workers with GRTW) (95% CI)Calendar days off work for workers without GRTW (95% CI)Coefficient (additional calendar days off work for workers with GRTW) (95% CI)Calendar days off work for workers without GRTW (95% CI)Coefficient (additional calendar days off work for workers with GRTW) (95% CI)
10th43.16 (41.80 to 44.53)17.48 (15.58 to 19.39)46.47 (43.52 to 49.42)31.4 (27.49 to 35.31)42.55 (39.24 to 45.85)26.46 (21.89 to 31.09)
20th56.36 (54.37 to 58.35)16.25 (13.48 to 19.02)57.88 (54.16 to 61.60)42.24 (36.56 to 47.92)56.66 (51.86 to 61.45)32.18 (25.45 to 38.90)
30th72.09 (69.39 to 74.78)12.95 (9.19 to 16.71)73.64 (67.83 to 79.45)51.48 (43.76 to 59.19)77.57 (71.06 to 84.08)27.62 (18.49 to 36.75)
40th89.76 (85.96 to 93.57)10.78 (5.49 to 16.08)94.15 (85.96 to 102.34)53.16 (42.29 to 64.03)108.31 (99.13 to 117.49)15.80 (2.93 to 28.67)
50th119.94 (114.10 to 125.79)4.37 (−3.77 to 12.50)119.29 (106.70 to 131.87)57.17 (40.46 to 73.88)152.40 (138.30 to 166.50)2.79 (−16.98 to 22.57)
60th180.07 (169.46 to 190.68)−18.91 (−33.68 to −4.14)158.50 (135.65 to 181.35)50.16 (19.83 to 80.49)216.01 (190.40 to 241.62)−13.75 (−49.66 to 22.16)
70th307.07 (292.82 to 321.31)−82.16 (−101.98 to −62.33)240.61 (209.93 to 271.29)34.7 (−6.01 to 75.41)310.00 (276.43 to 345.17)−17.63 (−65.83 to 30.57)
80th348.79 (346.06 to 351.52)0 (0 to 0)‡348.79 (342.90 to 354.67)0 (−7.81 to 7.81)348.79 (342.19 to 355.38)0 (−9.25 to 9.25)
90th365.00 (365.00 to 365.00)0 (0 to 0)‡365.00 (365.00 to 365.00)0 (0 to 0)‡365.00 (365.00 to 365.00)0 (0 to 0)‡
  • The regression coefficients represent the difference in days relative to the number of days for the workers without GRTW by 10 percentiles of the distribution.

  • *Adjusted for: MSD, age, wage, gender, occupation, prior claims, firm size, industry sector, claim year, use of opioids, NSAIDs and SMRs within 30 days post claim.

  • †Adjusted prediction of cumulative time-loss days when all other variables are set at the sample means.

  • ‡Zero value caused by censoring of the data at 365 days.

  • GRTW, gradual return to work; MSD, musculoskeletal disorder; NSAIDs, non-steroidal anti-inflammatory drugs; RTW, return to work.