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Table 4 Mean, SD, number of items, observed range, Cronbach's α, and F-values of the SF20 scales observed in the present study and among patients and healthy controls in a comparison study (means with equal upper case superscripts are not significantly different).

From: The psychological burden of an initially unexplained illness: patients with sternocostoclavicular hyperostosis before and after delayed diagnosis

SF20-scale
(# of items; observed range; α)
SCCH patients
n = 52
Pituitary disease ANOVA F-value;
df= 2, 221
   Patients c
n = 86
Controls c
n = 86
 
Physical functioninga
(6; 6 - 12; .673)
8.44A ± 1.58 26.6B ± 3.7 28.6C ± 2.1 983.36 **
Role functioninga
(2; 2 - 4; .766)
2.46A ± .75 2.8A ± 1.5 3.7B ± .7 25.237 **
Social functioninga
(1; 1 - 6; --)
4.33A ± 1.21 4.8A ± 1.7 5.7B ± .7 20.948 **
Mental healtha
(5; 5 - 30; .933)
21.61A ± 5.13 22.8A, B ± 5.9 24.6B ± 3.6 6.417*
Health perceptionsa
(5; 5 - 30; .745)
14.08A ± 3.91 19.6B ± 4.3 22.8C ± 2.4 95.857 **
Painb
(1; 1 - 5; --)
3.63A ± 1.27 2.1B ± 1.2 1.7C ±.8 53.909**
  1. aHigher values indicate better functioning and health. b Higher values indicate more pain. cSonino et al. [45], the data of the Sonino et al. study were transformed to make them comparable to the means of the SCCH study. * p < .002. ** p < .00001.