Table 3 Description and definition of outcome events in this cohort study.

From: Longitudinal trajectories unravel the complex interplay of medication, cardiovascular events, chronic kidney disease, and mortality

Event

Event Description

Definition

Index date

Dispensation date of PPI or H2B

Cohort entry begins at the index date

CKD Outcomes

Adverse outcomes related to

chronic kidney disease

eGFR Decline

≥ 30% decline from the index eGFR

CKD Incidence

eGFR < 60 mL/min/1.73 m²

Kidney Replacement Therapy (KRT)

Dialysis or kidney transplantation, confirmed

by the Swedish Renal Registry

Death due to CKD

Classified under ICD-10 code N18

Cardiovascular Adverse Events (CVAE)

Adverse cardiovascular events

Myocardial Infarction

Identified using ICD-10 codes recorded

during inpatient visits: I21, I22

Heart Failure

Identified using ICD-10 codes recorded

during inpatient visits: I099, I110, I130, I132,

I255, I420, I425, I426, I527, I428, I429,

I43, I50, P290

Stroke

Identified using ICD-10 codes recorded

during either inpatient visits: I60, I61, I63, I64

Death due to Cardiovascular Events

Death attributed to cardiovascular causes

defined by ICD-10 codes I21, I22, I099, I110,

I130, I132, I255, I420, I425, I426, I527, I428,

I429, I43, I50, P290, I60, I61, I63, I64

Death

All-cause mortality, death from any cause

Recorded at any point during follow-up

Study end

The date on which follow-up ended for

participants who did not experience

any events.

Follow-up ended on December 31, 2021, or

on the date of emigration from Sweden,

whichever occurred first