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. 2014 Sep 16;7(2):96–102. doi: 10.1016/j.slsci.2014.09.004

Table 2.

Distribution of the variables gender and season of birth between chronotypes of medical students from the Federal University of Paraiba, João Pessoa, Paraíba, Brazil.

Variables Groups*
Total (%) χ²**
Evening (%) Indifferent (%) Morning (%)
Gender Male 29 (63) 65 (57) 29 (47.5) 123 (55.7) NS
Female 17 (37) 49 (43) 32 (52.5) 98 (44.3)
Total 46 (100) 114 (100) 61 (100) 221 (100)
Season of birth Spring 13 (28.3) 27 (23.7) 14 (23) 54 (24.4) NS
Summer 13 (28.3) 26 (22.8) 20 (32.8) 59 (26.7)
Autumn 8 (17.4) 35 (30.7) 11 (18) 54 (24.4)
Winter 12 (26.1) 26 (22.8) 16 (26.2) 54 (24.4)
Total 46 (100) 114 (100) 61 (100) 221 (100)

Groups determined by the Standard Questionnaire to identify the chronotypes (MEQ).

⁎⁎

Statistical significance by the chi-square test for the difference between the groups.