Table 1.

Methodological characteristics of patient-level Surveys 1, 2, and 3.

	Survey 1			Survey 2	Survey 3
Survey Date(s)	27 July 2016			25 January 2017	April 2017–March 2018 On 12 appointed days (1 day per 3–4 weeks)
Survey Design	point prevalence				point prevalence (on multiple days)
Survey Site	29 wards from 10 hospitals surgical, trauma, neurological, or dermatological wards (10 outside the capital; 19 in the capital)				vascular surgery ward
Dosing of PPI therapy	recorded		recorded		recorded
Indication of PPI therapy	recorded		recorded		recorded
Duration of PPI therapy	not recorded		recorded		recorded
Initiation of PPI use	not recorded		only hospital initiation		recorded
De-prescribing attempt	not recorded		not recorded		recorded
Total number of the patient’s chronic medications	not recorded	recorded			recorded