Limits...
Relationship between environment factors and the number of outpatient visits at a clinic for nonallergic rhinitis in Japan, extracted from electronic medical records.

Hoshino T, Hoshino A, Nishino J - Eur. J. Med. Res. (2015)

Bottom Line: Among the 9056 outpatients visiting a general internal medicine clinic in Japan between August 2012 and the end of July 2013 (counting return visitors as multiple cases), the total daily number of first visits for NAR plus the number of extraordinary visits by patients with NAR for acute exacerbation of the disease was investigated using electronic medical records and analyzed.Major parameters with significant Spearman's correlation coefficients and significant correlation coefficients also in the multiple regression analysis were the mean vapor pressure (coefficient of determination 27.3 %) throughout the year, mean vapor pressure (58.4 %), mean temperature (44.4 %), maximum 10-min precipitation (12.0 %) only during the autumn-winter period, and temperature difference (13.3 %) only during the spring-summer period.The mean vapor pressure is the most important environmental factor associated with acute exacerbation of NAR.

View Article: PubMed Central - PubMed

Affiliation: Information Management Officer, Department of Clinical Research and Informatics, National Center for Global Health and Medicine, Tokyo, Japan. hoshino1133@hotmail.co.jp.

ABSTRACT

Background: The objective of this study was to evaluate the influence of the environmental factors (meteorological factors, air pollutant levels, etc.) on the number of clinic consultations for nonallergic rhinitis (NAR).

Methods: Among the 9056 outpatients visiting a general internal medicine clinic in Japan between August 2012 and the end of July 2013 (counting return visitors as multiple cases), the total daily number of first visits for NAR plus the number of extraordinary visits by patients with NAR for acute exacerbation of the disease was investigated using electronic medical records and analyzed.

Results: Major parameters with significant Spearman's correlation coefficients and significant correlation coefficients also in the multiple regression analysis were the mean vapor pressure (coefficient of determination 27.3 %) throughout the year, mean vapor pressure (58.4 %), mean temperature (44.4 %), maximum 10-min precipitation (12.0 %) only during the autumn-winter period, and temperature difference (13.3 %) only during the spring-summer period.

Conclusions: The mean vapor pressure is the most important environmental factor associated with acute exacerbation of NAR.

No MeSH data available.


Related in: MedlinePlus

A significant correlation (0.205, p < 0.0001) was identified between the temperature difference (temperature difference between the minimum temperature and maximum temperature during the day) and the 7-day moving average of the number of clinic consultations for NAR in the studied Japanese cohort between August 2012 and July 2013
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC4502595&req=5

Fig3: A significant correlation (0.205, p < 0.0001) was identified between the temperature difference (temperature difference between the minimum temperature and maximum temperature during the day) and the 7-day moving average of the number of clinic consultations for NAR in the studied Japanese cohort between August 2012 and July 2013

Mentions: Other environmental factors that were significantly correlated with the 1-week moving average of the clinical consultation number for NAR were the wind speed (e.g., maximum wind speed, 0.361, p < 0.0001, Fig. 2) and temperature difference (0.205, p < 0.0001, Fig. 3). The data on the other factors are shown in Table 2, together with the statistical analysis methods. Factors for which significant Spearman’s correlation coefficients and significant regression coefficients also in the multiple regression analysis (F = 17.327, p < 0.001, R2 = 0.546) were obtained were the mean vapor pressure (coefficient of determination 27.3 %), mean cloud cover (7.5 %), atmospheric levels of sulfur dioxide (5.7 %), and atmospheric levels of nitric oxide (9.0 %).Fig. 2


Relationship between environment factors and the number of outpatient visits at a clinic for nonallergic rhinitis in Japan, extracted from electronic medical records.

Hoshino T, Hoshino A, Nishino J - Eur. J. Med. Res. (2015)

A significant correlation (0.205, p < 0.0001) was identified between the temperature difference (temperature difference between the minimum temperature and maximum temperature during the day) and the 7-day moving average of the number of clinic consultations for NAR in the studied Japanese cohort between August 2012 and July 2013
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4502595&req=5

Fig3: A significant correlation (0.205, p < 0.0001) was identified between the temperature difference (temperature difference between the minimum temperature and maximum temperature during the day) and the 7-day moving average of the number of clinic consultations for NAR in the studied Japanese cohort between August 2012 and July 2013
Mentions: Other environmental factors that were significantly correlated with the 1-week moving average of the clinical consultation number for NAR were the wind speed (e.g., maximum wind speed, 0.361, p < 0.0001, Fig. 2) and temperature difference (0.205, p < 0.0001, Fig. 3). The data on the other factors are shown in Table 2, together with the statistical analysis methods. Factors for which significant Spearman’s correlation coefficients and significant regression coefficients also in the multiple regression analysis (F = 17.327, p < 0.001, R2 = 0.546) were obtained were the mean vapor pressure (coefficient of determination 27.3 %), mean cloud cover (7.5 %), atmospheric levels of sulfur dioxide (5.7 %), and atmospheric levels of nitric oxide (9.0 %).Fig. 2

Bottom Line: Among the 9056 outpatients visiting a general internal medicine clinic in Japan between August 2012 and the end of July 2013 (counting return visitors as multiple cases), the total daily number of first visits for NAR plus the number of extraordinary visits by patients with NAR for acute exacerbation of the disease was investigated using electronic medical records and analyzed.Major parameters with significant Spearman's correlation coefficients and significant correlation coefficients also in the multiple regression analysis were the mean vapor pressure (coefficient of determination 27.3 %) throughout the year, mean vapor pressure (58.4 %), mean temperature (44.4 %), maximum 10-min precipitation (12.0 %) only during the autumn-winter period, and temperature difference (13.3 %) only during the spring-summer period.The mean vapor pressure is the most important environmental factor associated with acute exacerbation of NAR.

View Article: PubMed Central - PubMed

Affiliation: Information Management Officer, Department of Clinical Research and Informatics, National Center for Global Health and Medicine, Tokyo, Japan. hoshino1133@hotmail.co.jp.

ABSTRACT

Background: The objective of this study was to evaluate the influence of the environmental factors (meteorological factors, air pollutant levels, etc.) on the number of clinic consultations for nonallergic rhinitis (NAR).

Methods: Among the 9056 outpatients visiting a general internal medicine clinic in Japan between August 2012 and the end of July 2013 (counting return visitors as multiple cases), the total daily number of first visits for NAR plus the number of extraordinary visits by patients with NAR for acute exacerbation of the disease was investigated using electronic medical records and analyzed.

Results: Major parameters with significant Spearman's correlation coefficients and significant correlation coefficients also in the multiple regression analysis were the mean vapor pressure (coefficient of determination 27.3 %) throughout the year, mean vapor pressure (58.4 %), mean temperature (44.4 %), maximum 10-min precipitation (12.0 %) only during the autumn-winter period, and temperature difference (13.3 %) only during the spring-summer period.

Conclusions: The mean vapor pressure is the most important environmental factor associated with acute exacerbation of NAR.

No MeSH data available.


Related in: MedlinePlus