Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet.
BACKGROUND: The avoidance of inhaled allergens or tobacco smoke has been known to have favorable effects on asthma control. However, it remains unclear whether other lifestyle-related factors are also related to asthma control. Therefore, a comprehensive study to examine the associations between var...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3706625?pdf=render |
| _version_ | 1828401099316396032 |
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| author | Motoyasu Iikura Siyan Yi Yasunori Ichimura Ai Hori Shinyu Izumi Haruhito Sugiyama Koichiro Kudo Tetsuya Mizoue Nobuyuki Kobayashi |
| author_facet | Motoyasu Iikura Siyan Yi Yasunori Ichimura Ai Hori Shinyu Izumi Haruhito Sugiyama Koichiro Kudo Tetsuya Mizoue Nobuyuki Kobayashi |
| author_sort | Motoyasu Iikura |
| collection | DOAJ |
| description | BACKGROUND: The avoidance of inhaled allergens or tobacco smoke has been known to have favorable effects on asthma control. However, it remains unclear whether other lifestyle-related factors are also related to asthma control. Therefore, a comprehensive study to examine the associations between various lifestyle factors and asthma control was conducted in Japanese asthmatic patients. METHODS: The study subjects included 437 stable asthmatic patients recruited from our outpatient clinic over a one-year period. A written, informed consent was obtained from each participant. Asthma control was assessed using the asthma control test (ACT), and a structured questionnaire was administered to obtain information regarding lifestyle factors, including tobacco smoking, alcohol drinking, physical exercise, and diet. Both bivariate and multivariate analyses were conducted. RESULTS: The proportions of total control (ACT = 25), well controlled (ACT = 20-24), and poorly controlled (ACT < 20) were 27.5%, 48.1%, and 24.5%, respectively. The proportions of patients in the asthma treatment steps as measured by Global Initiative for Asthma 2007 in step 1, step 2, step 3, step 4, and step 5 were 5.5%, 17.4%, 7.6%, 60.2%, and 9.4%, respectively. Body mass index, direct tobacco smoking status and alcohol drinking were not associated with asthma control. On the other hand, younger age (< 65 years old), passive smoking, periodical exercise (> 3 metabolic equivalents-h/week), and raw vegetable intake (> 5 units/week) were significantly associated with good asthma control by bivariate analysis. Younger age, periodical exercise, and raw vegetable intake were significantly associated with good asthma control by multiple linear regression analysis. CONCLUSIONS: Periodical exercise and raw vegetable intake are associated with good asthma control in Japanese patients. |
| first_indexed | 2024-12-10T09:42:20Z |
| format | Article |
| id | doaj.art-8f58de212b664a5fbf3d5a940223b617 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-10T09:42:20Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-8f58de212b664a5fbf3d5a940223b6172022-12-22T01:53:58ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0187e6829010.1371/journal.pone.0068290Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet.Motoyasu IikuraSiyan YiYasunori IchimuraAi HoriShinyu IzumiHaruhito SugiyamaKoichiro KudoTetsuya MizoueNobuyuki KobayashiBACKGROUND: The avoidance of inhaled allergens or tobacco smoke has been known to have favorable effects on asthma control. However, it remains unclear whether other lifestyle-related factors are also related to asthma control. Therefore, a comprehensive study to examine the associations between various lifestyle factors and asthma control was conducted in Japanese asthmatic patients. METHODS: The study subjects included 437 stable asthmatic patients recruited from our outpatient clinic over a one-year period. A written, informed consent was obtained from each participant. Asthma control was assessed using the asthma control test (ACT), and a structured questionnaire was administered to obtain information regarding lifestyle factors, including tobacco smoking, alcohol drinking, physical exercise, and diet. Both bivariate and multivariate analyses were conducted. RESULTS: The proportions of total control (ACT = 25), well controlled (ACT = 20-24), and poorly controlled (ACT < 20) were 27.5%, 48.1%, and 24.5%, respectively. The proportions of patients in the asthma treatment steps as measured by Global Initiative for Asthma 2007 in step 1, step 2, step 3, step 4, and step 5 were 5.5%, 17.4%, 7.6%, 60.2%, and 9.4%, respectively. Body mass index, direct tobacco smoking status and alcohol drinking were not associated with asthma control. On the other hand, younger age (< 65 years old), passive smoking, periodical exercise (> 3 metabolic equivalents-h/week), and raw vegetable intake (> 5 units/week) were significantly associated with good asthma control by bivariate analysis. Younger age, periodical exercise, and raw vegetable intake were significantly associated with good asthma control by multiple linear regression analysis. CONCLUSIONS: Periodical exercise and raw vegetable intake are associated with good asthma control in Japanese patients.http://europepmc.org/articles/PMC3706625?pdf=render |
| spellingShingle | Motoyasu Iikura Siyan Yi Yasunori Ichimura Ai Hori Shinyu Izumi Haruhito Sugiyama Koichiro Kudo Tetsuya Mizoue Nobuyuki Kobayashi Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. PLoS ONE |
| title | Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. |
| title_full | Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. |
| title_fullStr | Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. |
| title_full_unstemmed | Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. |
| title_short | Effect of lifestyle on asthma control in Japanese patients: importance of periodical exercise and raw vegetable diet. |
| title_sort | effect of lifestyle on asthma control in japanese patients importance of periodical exercise and raw vegetable diet |
| url | http://europepmc.org/articles/PMC3706625?pdf=render |
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