Baseline characteristics of the study participants at admission (n = 322).

Values are presented as means ± SD or as the number of patients (%). Bolded values indicate statistical significance. † Use of a drug was defined as regular oral administration within 1 month before the interview. AIDS, acquired immune deficiency syndrome, BMI, body mass index, GIB, gastrointestinal bleeding, LGIB, lower gastrointestinal bleeding, NSAIDs, non-steroidal anti-inflammatory drugs, SD, standard deviation Baseline characteristics of the study participants at admission (n = 322).数据以均值±标准差（SD，standard deviation）或患者例数（百分比）形式呈现。加粗数值代表具有统计学显著性。 † 药物使用定义为访谈前1个月内规律口服给药。 艾滋病（AIDS，acquired immune deficiency syndrome）、体质量指数（BMI，body mass index）、胃肠道出血（GIB，gastrointestinal bleeding）、下消化道出血（LGIB，lower gastrointestinal bleeding）、非甾体抗炎药（NSAIDs，non-steroidal anti-inflammatory drugs）、标准差（SD，standard deviation） 本研究纳入受试者入院时的基线特征（n=322）。