Chronotype assessment of the Bengalese adolescents: an observational study using a Bengali version of the reduced Morningness-Eveningness Questionnaire (rMEQ)

Haldar, Prasun; Bhattacharjee, Soumya; Maity, Santi Gopal; Debnath, Smriti; Moitra, Saibal; Moitra, Subhabrata

Chronotype assessment of the Bengalese adolescents: an observational study using a Bengali version of the reduced Morningness-Eveningness Questionnaire (rMEQ)

2020

Chronotype or morningness orientation is an interpersonal characteristic that influence human physiology and psychology and less is known about the chronotype of the Bengalese adolescents in India. We aimed to study the chronotype of this population by using a translated version of a previously established questionnaire. 471 Bengali-speaking adolescents (13–14 years) (boys = 268, girls = 203) of West Bengal, India were included in this study and their chronotype was assessed using an interviewer-administered Bengali version of the reduced Morningness–eveningness Questionnaire (rMEQ). The reliability of the translated instrument was assessed using Cronbach’s α. Chi-squared test was used to observe the chronotype distribution between the boys and girls. rMEQ scores of all the participants ranged between 5 and 25 with a median value of 17 (25–75th percentile: 15–20). Cronbach’s α was 0.751. Using cut off scores, we found 47% of our study participants were of morning chronotype, whereas the intermediate and evening types were of 50% and 3%, respectively. Chi-squared test demonstrated a significantly higher morningness among boys than the girls. The study describes the morningness orientation pattern of the Bengalese adolescents that may have some defined influence on their physiological and psychological characteristics including health and disease.

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