Table 1

Characteristics of 333 children and young people with CFS/ME included in analysis

All333
Female (n (%))227 (68.2%)
Age in years: median (IQR)14.9 (12.9–16)
Physical function (SF36): median (IQR)21 (16–24)
Fatigue (Chalder Fatigue): median (IQR)24 (21–28)
Length of illness (months): median (IQR)17 (9–36)
Attendance at school (% of possible): median (IQR)40 (10–60