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Relation between weather factors and QOL of the patients under domiciliary oxygen therapy

Research Project

Project/Area Number 16592216
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Community health/Gerontological nurisng
Research InstitutionOsaka Prefecture University (2005-2006)
Osaka Prefectual College of Nursing (2004)

Principal Investigator

KAIDO Takero  Osaka Prefecture University, School of Nursing, Prefessor, 看護学部, 教授 (20152580)

Co-Investigator(Kenkyū-buntansha) HONDA Yasushi  University of Tsukuba, School of Comprehensive Human Sciences, Professor, 大学院人間総合科学研究科, 教授 (20165616)
SUZUKI Yukiko  Wakayama Medical University, School of Health and Nursing Science, Professor, 教授 (60285319)
MAEKAWA Yasuko  Osaka Prefecture University, School of Nursing, Instructor, 看護学部, 助手 (60353033)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥2,300,000 (Direct Cost: ¥2,300,000)
KeywordsWeather Factor / Domiciliary Oxygen Therapy / Quality of Life / QOL
Research Abstract

The purpose of this cohort study for patients under domiciliary oxygen therapy was to elucidate the relation between the patients' QOL and weather factors. The underlying diseases were mostly COPD. By the study end date, nine patients were lost to follow-up (Four deaths, 3 exacerbation, 2 personal reasons).
This study was approved by the internal review board of our university and the patients' medical facilities.
We first measured room temperature of patients' living room and bedroom every 30 minutes, using automatic thermo-recorders. Next, we visited the patients every 70-80 days and collected the data, along with the diaries, the contents of which include blood oxygen saturation, heart rate, patients' physical condition, appetite, and degree of dyspnea. The temperature data outside the patients' houses were collected from the closest measurement points of AMeDAS (Automated Meteorological Data Acquisition System).
By comparing the relation between the room and outside temperatures, we found that the room temperatures were higher during cold days and somewhat lower during hot days than the outside temperatures, probably due to air-conditioning effect, but the room temperatures often exceeded 30℃.
In 2005 in Osaka, the ambient temperature rose after April and the monthly average temperature was record high in June, with the peak being around the end of June. Under this circumstance, the room temperatures also rose very high, which prevented the patients from acclimatization, and a female patient was hospitalized by ambulance car. This patient experienced lowered blood oxygen saturation and tachycardia. The elevation of the room temperature is partly affected by the oxygen condensers, which generated heat.
In winter 2005, on the day when it snowed and the next day, many of the bedroom temperatures were lowest, and we observed a male patient who apparently became ill due to this cold exposure and was hospitalized.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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