(PO04-36-22) Maternal Circadian Rhythm and Its Association With Meal Timing and Density: A Prospective Cohort Study

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Presenting Author(s)

SK

Satvinder Kaur, Ph.D
– Senior Lecturer, UCSI University, Cheras, Kuala Lumpur, Malaysia

Co-Author(s)

NA

Normina Abdul Bustami, Ph.D
– UCSI University, Cheras, Kuala Lumpur, Malaysia
MT

Masaki Takahashi, Ph.D., RD
– Tokyo Institute of Technology, Ookayama Meguro-ku, Tokyo, Japan
NM

Nurul Husna Mohd Shukri, Ph.D
– Universiti Putra Malaysia, Serdang, Selangor, Malaysia
SS

Siti Raihanah Shafie, Ph.D
– Universiti Putra Malaysia, Serdang, Selangor, Malaysia
SS

Shigenobu Shibata, Ph.D
– Waseda University, Shinjuku City, Tokyo, Japan
Ai Ni Teoh, BSc (Hons)
– PhD candidate, UCSI University, Cheras, Kuala Lumpur, Malaysia

Disclosure(s):

Satvinder Kaur, Ph.D: No relevant financial relationship(s) with ineligible companies to disclose.

Objectives: This prospective cohort study aimed to examine the association between chronotype with nutritional and psychosocial factors in pregnant women.

Methods: Chronotype of the subjects was determined using Morningness-Eveningness Questionnaire (MEQ), whereby higher scores indicate greater morningness. Sleep quality and psychological distress were assessed using the Pittsburgh Sleep Quality Index questionnaire (PSQI) and Depression, Anxiety and Stress Scale (DASS-21) respectively. Pedometer was used to measure 5-day physical activity. Pre-pregnancy weight and height were self-reported.

Results: To date, 100 pregnant women were approached at selected government maternal and child clinics in Kuala Lumpur, Malaysia. Subjects were mostly Malay (67%). Mean age was 28 (4.3) years; 12% were underweight and 19% were overweight/obese before pregnancy. Stress, anxiety, and depression of moderate severity or above were found in 13%, 49%, and 12% of the subjects, respectively. The prevalence of poor sleepers was 70%. Sedentary behaviour was observed in 73% of the subjects (4086 ± 2247 steps/day). In the linear regression model, chronotype was a significant predictor of stress (β = -0.421, p = 0.015) and depression (β = -0.208, p = 0.042) during pregnancy.

Conclusions: Preliminary findings from this study suggested that chronobiological approaches may be important to tackle psychological distress during pregnancy, which may impact birth outcomes and subsequently, infant growth. The circadian rhythm of subjects will be determined based on salivary hormone in the upcoming analysis.

Funding Sources: Ministry of Higher Education, Malaysia. The funds were provided through the Fundamental Research Grant Scheme (FRGS/1/2018/SKK06/UCSI/02/2).