title: Relationship between the number of outpatient visits for hypotension in the springtime in Japan, extracted from clinical electronic records, and global solar radiation levels.
abstract: Hypotension is commonly reported in springtime when health changes, such as autonomic imbalance, are common and its symptoms may cause difficulties in daily activities. In this study, medical data from 101 outpatient clinic attendees (mean age 43.9 years; 16 males) making their first visit for hypotension symptoms, were compared with meteorological data from the clinic's location. The main symptom of hypotension was giddiness on standing. The most common coexisting conditions were gastrointestinal; e.g. gastro-oesophageal reflux disorder and irritable bowel syndrome. The 7-day moving average of total global solar radiation correlated significantly with the 7-day moving average of the number of patients with hypotension. Discriminant analysis revealed an increase in hypotension consultations in the total global solar radiation moving average range 11-19 MJ/m(2), consistent with the local spring season. Guidance--such as wearing compression stockings during springtime--may help to reduce the occurrence of clinical hypotension in susceptible patients.
authors: Information Management Office, National Centre for Global Health and Medicine, Tokyo, Japan. hoshino1133@hotmail.co.jp
authors: T
authors: T
authors: Hoshino
authors: A
authors: A
authors: Hoshino
authors: N
authors: N
authors: Matsubara
authors: T
authors: T
authors: Matsuoka
authors: Y
authors: Y
authors: Kikuchi
authors: T
authors: T
authors: Shimbo
authors: T
authors: T
authors: Shimizu
mesh_terms: D000328:Adult; D015897:Comorbidity; D057286:Electronic Health Records; D005260:Female; D005764:Gastroesophageal Reflux / Q000209:etiology*; D006801:Humans; D007022:Hypotension / Q000209:etiology*; D043183:Irritable Bowel Syndrome / Q000209:etiology*; D007564:Japan; D008297:Male; D010045:Outpatients; D012307:Risk Factors; D012621:Seasons; D013472:Sunlight / Q000009:adverse effects*; D015996:Survival Rate