Table 1.
Descriptive statistics of cohort by mental health diagnosis groups. Descriptive characteristics between groups are compared via Kruskal-Wallis H test, Pearson χ2 analysis, or Fisher exact test.
|
No Depression or Anxiety (n =323) |
Depression or Anxiety (n = 37) |
Depression and Anxiety (n = 31) |
P
Value |
|
| Age, mean (95% CI), y | 63.0 (61.0, 64.0) | 62.0 (58.0, 66.0) | 61.0 (58.0, 64.0) | .809 |
| Sex, n (%) | .057 | |||
| M | 168 (52.0) | 21 (56.8) | 23 (74.2) | |
| F | 155 (48.0) | 16 (43.2) | 8 (25.8) | |
| Body mass index, kg/m2 (95% CI) | 30.4 (29.8, 31.1) | 30.6 (29.1, 32.1) | 30.7 (28.7, 32.8) | .962 |
| Smoking status, n (%) | .001a | |||
| Never | 228 (70.6) | 20 (54.1) | 16 (51.6) | |
| Current | 22 (6.8) | 1 (2.7) | 7 (22.6) | |
| Former | 73 (22.6) | 16 (43.2) | 8 (25.8) | |
| Preoperative diagnosis, n (%) | .723 | |||
| Spondylolisthesis | 228 (70.6) | 23 (62.2) | 21 (67.8) | |
| Scoliosis | 43 (13.3) | 5 (13.5) | 5 (16.1) | |
| Recurrent disc herniation | 11 (3.4) | 1 (2.7) | 0 (0.0) | |
| Stenosis | 41 (12.7) | 8 (21.6) | 5 (16.1) | |
| No. of levels decompressed, n (%) | .750 | |||
| 1 | 140 (43.3) | 21 (56.8) | 11 (35.5) | |
| 2 | 103 (31.9) | 7 (18.9) | 12 (38.7) | |
| 3 | 61 (18.9) | 7 (18.9) | 6 (19.4) | |
| 4 | 16 (5.0) | 2 (5.4) | 2 (6.4) | |
| 5 | 3 (0.9) | 0 (0.0) | 0 (0.0) | |
| No. of levels fused, n (%) | .279 | |||
| 1 | 224 (69.3) | 31 (83.8) | 20 (64.5) | |
| 2 | 78 (24.1) | 6 (16.2) | 8 (25.8) | |
| 3 | 21 (6.6) | 0 (0.0) | 3 (9.7) | |
| Follow-up, mean (95% CI), mo | 13.6 (13.0, 14.1) | 13.4 (12.4, 14.4) | 13.3 (11.6, 15.1) | .953 |
| Symptom duration, n (%) | .338 | |||
| <3 mo | 238 (73.7) | 28 (75.7) | 19 (61.3) | |
| 3-6 mo | 50 (15.5) | 4 (10.8) | 9 (29.0) | |
| >6 mo | 35 (10.8) | 5 (13.5) | 3 (9.7) |
a
Indicates statistical significance (P < .05).