LBPS 03-11 INFLUENCE OF NIGHT SHIFT ROTATION TOWARDS DIURNAL VARIATION OF BLOOD PRESSURE OF THE CLINICAL CLERKS COMPARED WITH PRECLINICAL STUDENTS: A MULTICENTER STUDY IN INDONESIA

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Abstract

Objective:

The aim of this study was to explore the influence of night shift rotation in clinical clerks towards diurnal variation in daytime and nighttime BP, compared to preclinical students who didn’t get night shift rotation.

Design and Method:

Prospective cohort study with purposive samples from 9 center of medical education in Indonesia was held in 2013–2016. Total of 324 medical students, divided into 169 clinical clerks (C) and 155 preclinical students (PS) aged between 19 and 38 years, were included. Based on a multi-center collaboration, the participants were investigated between 2013–2014 (baseline) and 2014–2016 (follow-up). They were analyzed according to their total sleep duration. BP were measured with Omron HEM-7200 Home Blood Pressure Monitoring (HBPM) at baseline and minimum 5 times/week during follow-up.

Results:

Average age for C group vs PS group was 23.08 vs 20.19 (p = 0.002, 95%CI). Other variables (gender ratio, race, body weight, BMI, baseline BP) were made constant. Average sleeping duration for PS group was 52.13 hours in a week and for C group (with >2 night shift rotation in a week) was only 46.66 hours (p = 0.003, 95%CI). The result for daytime BP weren’t statistically different (p = 0.320, 95%CI), however, we found significant difference in nighttime BP (p = 0.001, 95%CI). There is an inverse correlation between sleeping duration and nighttime BP in C groups (p = 0.001, r = −5.213, 95%CI).

Conclusions:

There is a different pattern of blood pressure in clinical clerks, compared to preclinical students. Night shift rotation with lack of sleeping duration, are believed to have major part in increasing nighttime BP in clinical clerks.

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