Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of general information between the two groups.
| Group | n | Gender (male/female) | Age (year) | Protruding segment | Course of disease (year) | ||
|---|---|---|---|---|---|---|---|
| L3-4 | L4-5 | L5-S1 | |||||
| Control group | 63 | 33/30 | 52.71 ± 5.96 | 12 | 30 | 21 | 3.19 ± 0.33 |
| Observation group | 63 | 35/28 | 52.93 ± 6.01 | 13 | 31 | 19 | 3.22 ± 0.30 |
| X 2/t | — | 0.128 | 0.206 | 0.156 | 0.534 | ||
| P | — | 0.721 | 0.837 | 0.925 | 0.594 | ||
