Table 2.
Poor sleepers (PS) and good sleepers (GS).
| PS | Mean ± SD | 95%CI | GS | Mean ± SD | 95% CI | P | |
|---|---|---|---|---|---|---|---|
| Female sex | 46% | 26.7% | 0.039 | ||||
| PSQI* | 9.71 ± 2.97 | [ 9.08, 10.35] | 3.58 ± 1.23 | [3.21, 3.95] | < 0.001 | ||
| BMI [kg/m2] | 29.26 ± 5.04 | [28.18, 30.33] | 27.09 ± 4.51 | [25.73, 28.44] | 0.033 | ||
| NRS back pain | 7.14 ± 2.27 | [6.65, 7.62] | 5.42 ± 3.43 | [4.39, 6.45] | 0.008 | ||
| Pain medication | 0.59 ± 1.11 | [0.35, 0.82] | 0.09 ± 0.47 | [0.05, 0.23] | 0.003 | ||
|
SSM-Symptoms |
24.05 ± 4.26 |
[23.14, 24.95] |
21.96 ± 3.15 |
[21.01, 22.90] |
0.003 |
||
| NRS leg pain | 6.75 ± 2.93 | [6.12, 7.37] | 6.13 ± 2.66 | [5.33, 6.93] | 0.070 | ||
|
SSM-Function |
14.09 ± 2.35 |
[13.59,14.59] |
13.24 ± 2.39 |
[12.53, 13.96] |
0.078 |
||
| Occupation | (none/sed/phys) | 0.915 | |||||
| DN4** | 2.21 ± 1.81 | [ 1.82, 2.59] | 1.69 ± 1.29 | [1.30, 2.08] | 0.152 | ||
| Charlson-Index |
0.80 ± 1.46 |
[ 0.49, 1.12] |
0.64 ± 1.25 |
[0.27, 1.02] |
0.476 |
||
| DCSA (mm2) | 50.26 ± 19.43 | [45.94, 54.59] | 53.07 ± 19.22 | [0.27, 1.02] | 0.253 | ||
| RNR positive | 62.7% | 61.4% | 1.000 | ||||
| Satisfaction with surgery*** | 6 mos | 2.15 ± 0.85 | 2.22 ± 0.88 | 0.346 | |||
| 18 mos | 1.91 ± 1.09 | 1.89 ± 1.08 | 0.454 | ||||
Bold values (significant), Cursive values (trend). Values are represented as mean ± SD. *PS was defined as ≥ 6 of global PSQI score. ** DN4 ≥ 4 indicates neuropathic pain. Pain medication: 0 = none, 1 = non-opioid, 2 = opioid. *** Range from 1 (very satisfied) to 4 (very dissatisfied).