[Weather front sensitivity as an influencing factor in the onset of labor].

The connection between meteorological stimuli and the onset of labor was examined on the basis of the patients' front-sensitivity. Front-sensitivity was tested by a questionary containing 60 questions. Converse relation was observed between the degree of sensitivity and the gestational age. A sudden rise of onsets of labors could be shown during frontal changes, occurred after meteorologically quiet periods. During frontal changes the ratio of onsets of labors rose significantly among those patients who were sensitive tho the given front. This effect could be observed during a longer period of frontal influence. By the authors opinion also meteorological stimuli can be regarded as one of the factors, determining the actual date of onset of labor among front-sensitive women.