PMID- 32614250 OWN - NLM STAT- MEDLINE DCOM- 20210512 LR - 20210512 IS - 1557-8682 (Electronic) IS - 1527-0297 (Linking) VI - 21 IP - 4 DP - 2020 Dec TI - The Prevalence and Risk Factors of High-Altitude Pulmonary Hypertension Among Native Tibetans in Sichuan Province, China. PG - 327-335 LID - 10.1089/ham.2020.0022 [doi] AB - Gou, Qiling, Rufeng Shi, Xin Zhang, Qingtao Meng, Xinran Li, Xi Rong, Zhabu Gawa, Nage Zhuoma, and Xiaoping Chen. The prevalence and risk factors of high-altitude pulmonary hypertension among native Tibetans in Sichuan Province, China. High Alt Med Biol. 21:327-335, 2020. Background: Studies evaluating the prevalence and risk factors of high-altitude pulmonary hypertension (HAPH) are lacking. Objective: To determine the prevalence of HAPH and its correlated factors among highlanders living 3200 m above sea level in Ganzi Tibetan Autonomous Prefecture, Sichuan Province, China. Methods: This was a single-center, cross-sectional study involving 1129 subjects (mean age 46.6 +/- 14 years, 39% men). In native Tibetans, HAPH was defined as a mean pulmonary artery pressure >30 mmHg as measured by transthoracic echocardiography. Results: HAPH had a crude prevalence of 6.2% and was more prevalent in men than in women (8.6% vs. 4.6%, p = 0.005). Elderly adults were more likely to develop HAPH than young adults (odds ratio [OR] = 5.308, 95% confidence interval [CI] = 2.562-10.993). Highlanders with HAPH had more severe metabolic abnormalities (including elevated blood pressure, blood glucose, blood lipids, BMI, etc., p < 0.05) and significantly increased hemoglobin and hematocrit levels (p < 0.01). In multivariate logistic regression analysis, independent risk factors for HAPH were metabolic syndrome (OR = 3.128, 95% CI = 1.110-8.818), age (>60 years vs. <40 years) (OR = 2.924, 95% CI = 1.282-6.669), and decreased SpO(2) (OR = 1.072 per 1-unit decrease; 95% CI = 1.010-1.136). Conclusion: It could be concluded that HAPH was prevalent among 6.2% of native Tibetans in Sichuan Province, China. Increasing age, metabolic syndrome, and decreased SpO(2) were independent predisposing factors for HAPH. FAU - Gou, Qiling AU - Gou Q AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Shi, Rufeng AU - Shi R AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Zhang, Xin AU - Zhang X AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Meng, Qingtao AU - Meng Q AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Li, Xinran AU - Li X AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Rong, Xi AU - Rong X AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. FAU - Gawa, Zhabu AU - Gawa Z AD - Luhuo County People's Hospital, Ganzi, People's Republic of China. FAU - Zhuoma, Nage AU - Zhuoma N AD - Luhuo County People's Hospital, Ganzi, People's Republic of China. FAU - Chen, Xiaoping AU - Chen X AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, People's Republic of China. LA - eng PT - Journal Article DEP - 20200630 PL - United States TA - High Alt Med Biol JT - High altitude medicine & biology JID - 100901183 SB - IM MH - Adult MH - Aged MH - Altitude MH - China/epidemiology MH - Cross-Sectional Studies MH - Female MH - Humans MH - *Hypertension, Pulmonary/epidemiology/etiology MH - Male MH - Middle Aged MH - Prevalence MH - Risk Factors MH - Tibet/epidemiology MH - Young Adult OTO - NOTNLM OT - Tibetans OT - high-altitude pulmonary hypertension OT - hypoxia OT - metabolic syndrome EDAT- 2020/07/03 06:00 MHDA- 2021/05/13 06:00 CRDT- 2020/07/03 06:00 PHST- 2020/07/03 06:00 [pubmed] PHST- 2021/05/13 06:00 [medline] PHST- 2020/07/03 06:00 [entrez] AID - 10.1089/ham.2020.0022 [doi] PST - ppublish SO - High Alt Med Biol. 2020 Dec;21(4):327-335. doi: 10.1089/ham.2020.0022. Epub 2020 Jun 30.