In this paper general practitioners' (GPs') somatic-psychosocial attri
butions of fatigue are examined. The attribution process during medica
l consultations was studied by relating the GPs' judgements of the som
atic-psychosocial character of their patients' fatigue to patient-rela
ted characteristics, on the one hand, and medical-consultation charact
eristics on the other hand. The study was based on 2097 contact regist
rations from the Dutch National Study of Morbidity and Intervention in
General Practice by the NIVEL (Netherlands institute of Primary Healt
h Care). In order to explain the GPs' attributions, patient-related ch
aracteristics were added stepwise in a multiple regression analysis. S
ociodemographic characteristics explained only 1.8% of the variance. O
ther complaints explained an additional 14.3% with psychosocial compla
ints being most influential. Knowledge of an underlying disease/proble
m explained an additional 9.9% of the variance. All of the characteris
tics together explained 26.0% of the attributions by the GPs. More psy
chosocially-attributed Fatigue was found to correlate with consultatio
ns characterized by less physical examination, more diagnostic procedu
res to reassure, Fewer diagnostic procedures to discover underlying pa
thology, more counselling, less medical treatment, less prescription a
nd a longer duration than consultations with more somatically attribut
ed fatigue. It is concluded that GPs do not discriminate between socia
l groups when attributing fatigue to either somatic or psychosocial ca
uses. The presence and character of other complaints and underlying di
seases/problems, rather, relate to the GPs' somatic-psychosocial attri
butions, which are then associated with particular aspects of the cons
ultation. (C) 1998 Elsevier Science Ltd. All rights reserved.