Symptom duration of the SIH cohorta
| Present | Absent | P Value | |
|---|---|---|---|
| Overall hyperostosisb | n = 64 36 months (12–78) | n = 102 22 months (8–49) | .171 |
| Diffuse hyperostosis | n = 11 36 months (7–80) | n = 155 25 months (9–64) | .798 |
| Layered hyperostosis | n = 53 36 months(12–77) | n = 113 22 months(8–51) | .197 |
a Numbers in parentheses are interquartile range (25th and 75th percentiles) of symptom duration in months.
b Diffuse and layered.