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)
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.
Cohort
Prospective
Not listed
Functional dyspepsia defined by ROME IV criteria
Met the following criteria: by one or more of the following symptoms: postprandial fullness, early satiation, epigastric pain, and epigastric burning that are unexplained after a routine clinical evaluation, Criteria fulfilled for the last 3 months with symptom onset at least 6 months before diagnosis.
Functional dyspepsia defined by Asia criteria:
Met the following criteria: by one or more of the following symptoms: postprandial fullness, early satiation, epigastric pain, and epigastric burning that are unexplained after a routine clinical evaluation, the symptoms duration≧3 months.
Global Overall Symptom score (GOSS)
The GOSS consists of 10 cardinal items (epigastric pain, epigastric discomfort, Heartburn, acid regurgitation, upper abdominal bloating, belching, nausea, early satiety, postprandial fullness, other epigastric symptoms(eg. epigastric burning). Each item can be scored from 1 (no) to 7 (worst).
Number of participants subclassified into different subtypes of functional dyspepsia defined by ROME IV criteria
Functional dyspepsia was classified into three subgroups：(1) Postprandial Distress Syndrome, defined as Bothersome postprandial fullness or/and Bothersome early satiation. (2) Bothersome epigastric pain AND/OR Bothersome epigastric burning. (3) mixed syndrome, defined when postprandial distress syndrome and epigastric pain syndrome presented simultaneously.
Short Form of Nepean Dyspepsia Index (SF-NDI)
The SF-NDI consists of 10 questions regarding the effects of dyspepsia symptoms ("stomach problems") on different aspects of life (tension, interference with daily activities, eating/drinking, knowledge/control, and work/study). Each response can be from 1 (not at all affected) to 5 (extremely affected), or 0 (N/A), for a total summed score out of 50.
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