Time trends in the number of monthly admissions throughout the study period. Time trends in the number of monthly admissions throughout the study period. Month 0 was defined as the month of the earthquake (25 April 2015 to 24 May 2015). The pre-earthquake period (25 April 2013 to 24 April 2015) and the postearthquake period (25 April 2015 to 24 April 2017) was divided into month −1 to month −24 in reverse-chronological order, and month 0 to month 23 in chronological order. Anup Uprety et al. BMJ Open 2019;9:e026746 ©2019 by British Medical Journal Publishing Group