RD (N = 23)

No RD (N = 83)

P-value

Level, Median (1st - 3rd IQ)

23.0 (17.0 - 36.0)

122.0 (79.0 - 144.0)

^<0.001*

Grade

0.0 - 15.0 Immature

5 (21.7%)

0 (0.0%)

^#<0.001*

15.0 - 50.0 Intermediate

17 (73.9%)

8 (9.6%)

>50.0 Mature

1 (4.3%)

75 (90.4%)