Table 5 Distribution statistics for coefficients in linear discriminant model based on 50 random subsets of 10 healthy and 10 CFS/ME subjects in each age group
From: Illness progression in chronic fatigue syndrome: a shifting immune baseline
(a) Median (MADM-based Std Err a) |  | Age < =18 years | 18 < Age < = 50 years | Age > 50 years |
|---|---|---|---|---|
 Discriminant coefficients (n = 50) | ||||
  IL-1α | α1 | 1.93 (0.11) | 0.51 (0.06) | 0.14 (0.10) |
  IL-6 | α2 | −2.08 (0.17) | 0.91 (0.12) | 1.28 (0.07) |
  IL-8 | α3 | 2.89 (0.18) | −0.60 (0.06) | −1.36 (0.12) |
 Constant term | α0 | −1.86 (0.09) | −0.39 (0.05) | −0.49 (0.05) |
 Duration of illness (years) |  | 2.00 (0.00) | 6.50 (1.74) | 8.50 (1.26) |
(b) Mean (Std Err) | ||||
 Discriminant coefficients (n = 50) | ||||
  IL-1α | α1 | 2.41 (0.23) | 0.53 (0.10) | 0.14 (0.13) |
  IL-6 | α2 | −2.36 (0.19) | 1.09 (0.13) | 1.51 (0.13) |
  IL-8 | α3 | 3.53 (0.27) | −0.92 (0.14) | −1.52 (0.19) |
 Constant term | α0 | −2.07 (0.15) | −0.48 (0.06) | −0.61 (0.09) |
 Duration of illness (years) |  | 2.00 (0.00) | 7.09 (1.28) | 10.64 (1.46) |