[Importance of variation criteria in statistical evaluation of the immune status of work crews].

Variation criteria--variation coefficient, Fisher criterion (F-value) and suggested by the authors index of homeostasis--enable to evaluate completely the state of occupational crews and reveal their compensated disadaptation. Administration of adaptogens (such as oxymethacil) is expedient for correction of premorbid conditions in occupational crews. Increased aboriginality and random selection during occupational activities considerably better adaptational characteristics of the occupational crews.