approached significanceP =0.072
The OSDI score in the progressed group was significantly greater than that in the nonprogressed group at 12-month and 18-month visits and approached significance ( P =0.072) at 9-month visits.
The OSDI score in the progressed group was significantly greater than that in the nonprogressed group at 12-month and 18-month visits and approached significance ( P =0.072) at 9-month visits.