Table 3 Patient reported outcomes.

From: Cost consequence analysis of waiting for lumbar disc herniation surgery

 

Short wait < 60 days

Long wait ≥ 60 days

p value

Unadjusted baseline variables

 NRS back (mean, SD)

6.34 (2.78)

6.16 (2.30)

0.429

 NRS leg (mean, SD)

7.81 (1.85)

7.19 (2.02)

 < 0.001

 ODI (mean, SD)

50.94(16.60)

42.85(13.44)

 < 0.001

 EQ5D (mean, SD)

0.445 (0.223)

0.551 (0.193)

 < 0.001

 PCS (mean, SD)

30.43(7.51)

31.60(7.61)

0.044

 MCS (mean, SD)

40.98(11.31)

42.56(11.20)

0.062

Adjusted** change scores from baseline to 3 months

 NRS back (mean, SE)

3.865 (0.138)

3.544 (0.151)

0.117

 NRS leg (mean, SE)

5.231 (0.166)

4.937 (0.182)

0.234

 ODI (mean, SE)

28.669 (1.098)

23.566 (1.232)

0.002

 EQ5D (mean, SE)

0.295 (0.011)

0.266 (0.012)

0.073

 PCS (mean, SE)

12.507 (0.662)

10.905 (0.733)

0.106

 MCS (mean, SE)

9.832 (0.641)

7.118 (0.708)

0.005

Minimal clinical important difference (MCID) for patient reported outcomes

 MCID NRS back (n, %)

156 (69.6)

116 (62.0)

0.129

 MCID NRS leg (n, %)

189 (84.0)

142 (75.9)

0.040

 MCID ODI (n, %)

185 (78.1)

120 (60.3)

 < 0.001

 MCID EQ-5D (n, %)

107 (48.2)

50 (27.0)

 < 0.001

 MCID PCS (n, %)

150 (69.1)

104 (58.4)

0.036

 MCID MCS (n, %)

135 (62.2)

89 (50.0)

0.020

  1. SD standard deviation, SE standard error.
  2. **Adjusted for baseline score.
  3. Significant values are in [bold].