Dyspepsia is one of the most common gastrointestinal diseases. This disease was defined as predominant epigastric pain lasting for at least 1 month, which can be accompanied with other symptoms, such as epigastric fullness, and early satiety. Despite dyspepsia symptoms lasting for ≥1 month represented clinical problem, a longer duration of 6 months or more after first-onset symptom was required for the diagnosis of functional dyspepsia based on ROME IV criteria. It was unclear about the natural procession of first-onset dyspepsia to functional dyspepsia assessed by Rome IV or Asia criteria and possible factors associated with this progression.
Patients aged ≥ 18 years old who had first-onset dyspepsia with one or more symptoms of epigastric pain, epigastric burning, postprandial fullness, early satiation and that has lasted for more than 1 month to 3 months.
Known acute or chronic injury of liver or kidney
Obvious hematological abnormality, or endocrine and metabolic diseases
Known malignancy; Obvious cardiovascular or cerebrovascular diseases (such as coronary heart disease, arrhythmia, cerebral infarction and etc.
Other conditions which may be associated with dyspeptic symptoms (such as NSAIDs associated dyspepsia)