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Taniguchi Y, Seino S, Ikeuchi T, Hata T, Shinkai S, Kitamura A, Fujiwara Y. Protective effects of dog ownership against the onset of disabling dementia in older community-dwelling Japanese: A longitudinal study. Prev Med Rep 2023; 36:102465. [PMID: 37860160 PMCID: PMC10583170 DOI: 10.1016/j.pmedr.2023.102465] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
This prospective study examined the associations of dog/cat ownership with incident disabling dementia using propensity score matching based on the physical, social, and psychological characteristics of dog and cat owners. We also examined associations of the interaction between dog/cat ownership and exercise habit and social isolation with dementia. Overall, 11,194 older adults selected using stratified and random sampling strategies in 2016 were analyzed. Dog/cat ownership was defined as "current" or "past and never". Disabling dementia was defined according to physicians' rating in the long-term care insurance system in Japan during the approximately 4-year follow-up period. Statistical analysis was weighted by the inverse of the propensity score in the generalized estimating equation after adjusting for follow-up period. Current dog owners (8.6 %) had an odds ratio (OR) of 0.60 (95 %CI: 0.37-0.977) of having disabling dementia compared to past and never owners. For cat ownership, the corresponding OR was 0.98 (95 %CI: 0.62-1.55). Current dog owners with a regular exercise habit had an OR of 0.37 (0.20-0.68) compared to past and never dog owners with no exercise habit. Further, current dog owners with no social isolation had an OR of 0.41 (0.23-0.73) compared to past and never dog owners with social isolation. Dog ownership had a suppressive effect on incident disabling dementia after adjusting for background factors over a 4-year follow-up period. Specifically, dog owners with an exercise habit and no social isolation had a significantly lower risk of disabling dementia.
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Affiliation(s)
- Yu Taniguchi
- Japan Environment and Children’s Study Programme Office, National Institute for Environmental Studies, Tsukuba, Japan. ADRESS:16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Satoshi Seino
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Tomoko Ikeuchi
- Human Care Research Team, Tokyo Metropolitan Institute of Geriatrics and Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Toshiki Hata
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Shoji Shinkai
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
- Faculty of Nutrition, Kagawa Nutrition University, Saitama, Japan. ADRESS: 3-9-21 Chiyoda, Sakado City, Saitama 350-0288, Japan
| | - Akihiko Kitamura
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Yoshinori Fujiwara
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan. ADRESS: 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
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Christopoulos K. Bird ownership and pulmonary outcomes apart from hypersensitivity pneumonitis in European older adults. Respir Med Res 2023; 84:101066. [PMID: 38039666 DOI: 10.1016/j.resmer.2023.101066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Exposure to birds has been linked with several lung pathologies and especially hypersensitivity pneumonitis, but discordant literature exist on the potential effects of this exposure on other respiratory pathologies. AIM This study aims to examine the associations between bird ownership and asthma, lung cancer, and chronic obstructive pulmonary disease (COPD) in older European adults. METHODS A total of 28,109 participants from the Survey of Health, Ageing, and Retirement in Europe were employed and analyzed with multivariate logistic regressions. RESULTS No association was found with asthma or lung cancer. Bird ownership increased the odds for COPD diagnosis (OR=1.30; 95 % CI: 1.12-1.51) and more so in males (OR=1.53; 95 % CI: 1.25-1.87) after adjustment for demographic, respiratory, lifestyle, and socioeconomic factors. Male bird owners who smoke had an even more increased risk compared to non-smokers, as did those who lived in multi-person households compared to those living alone. CONCLUSION Bird ownership may be positively associated with COPD in older European males.
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Pet ownership and survival of European older adults. Eur J Ageing 2022; 19:1549-1560. [PMID: 36692784 PMCID: PMC9638448 DOI: 10.1007/s10433-022-00739-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
With pet ownership on the rise, millions of individuals are exposed to this environmental exposure. Although the subject has been largely studied, more evidence is needed to clarify the potential association of pet ownership with human health. The aim of this research is to study the potential association of pet exposure (any pet, cat, dog, bird, fish) with all-cause, cardiovascular and cancer mortality of older ([Formula: see text] 50 years) European residents. To this end, a total of 23,274 participants from the Survey of Health Ageing and Retirement in Europe (SHARE) were employed (median follow-up 119 months). All-cause mortality (5163 events), as well as cardiovascular (CVD) (1832 events), and cancer mortality (1346 events) were examined using Cox Proportional Hazards models for their relation with pet exposure at baseline. Stratified analyses were also performed by gender and for single or multi-person households. No significant association was observed for any of the pets with all-cause mortality on the whole sample and the fully adjusted models. In stratified analyses, bird exposure significantly increased the risk of all-cause mortality in women [Hazard Ratio [Formula: see text]; 95% CI 1.04-1.44] as well as women living alone [Formula: see text]; 95% CI 1.02-1.85). Cause-specific models revealed an increased risk of death for women bird owners for causes other than cancer and CVD [Formula: see text]; 95% CI 1.05-1.99). In conclusion, bird ownership may be negatively associated with survival of older women in Europe.
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Miyake K, Kito K, Kotemori A, Sasaki K, Yamamoto J, Otagiri Y, Nagasawa M, Kuze-Arata S, Mogi K, Kikusui T, Ishihara J. Association between Pet Ownership and Obesity: A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17103498. [PMID: 32429543 PMCID: PMC7277191 DOI: 10.3390/ijerph17103498] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 01/08/2023]
Abstract
Obesity is a major risk factor for lifestyle-related diseases, including cardiovascular disease, type 2 diabetes, and hypertension. Several studies have investigated the association between pet ownership and obesity, but the findings have been inconsistent. This systematic literature review and meta-analysis assessed the association between pet ownership and obesity. Using PubMed and Scopus, we overviewed the literature published until December 2019 and selected pertinent data for meta-analysis. Two independent reviewers extracted the data. Pooled relative risks (RRs) with 95% confidence intervals (CIs) for obesity were calculated using the random-effects model with inverse-variance weighting. The 21 included articles were cross-sectional studies. Five publications (nine analyses) that reported adjusted RRs for BMI ≥ 25 were included in the meta-analysis. No significant association existed between pet ownership and obesity (pooled RR = 1.038; 95% CI, 0.922–1.167; I2 = 51.8%). After stratification by age group (children vs. adults), no significant association was detected (pooled RR = 0.844; 95% CI, 0.604–1.179; I2 = 64.1% vs. pooled RR = 1.099; 95% CI, 0.997–1.212; I2 = 25.2%). Similarly, no significant association was observed between dog ownership and obesity, indicating no association between pet ownership and obesity. However, no infer causation can be reported because all studies included in this meta-analysis were cross-sectional. Therefore, further prospective studies are needed.
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Affiliation(s)
- Kenta Miyake
- Department of Food and Life Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (K.M.); (A.K.); (J.Y.)
| | - Kumiko Kito
- Graduate School of Environmental Health, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan;
| | - Ayaka Kotemori
- Department of Food and Life Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (K.M.); (A.K.); (J.Y.)
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
| | - Kazuto Sasaki
- Faculty of Nutritional Science, Sagami Women’s University, 2-1-1 Bunkyo, Minami-ku, Sagamihara-city, Kanagawa 252-0383, Japan;
| | - Junpei Yamamoto
- Department of Food and Life Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (K.M.); (A.K.); (J.Y.)
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
| | - Yuko Otagiri
- Center for Science Information Services, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan;
| | - Miho Nagasawa
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan
| | - Sayaka Kuze-Arata
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan
| | - Kazutaka Mogi
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan
| | - Takefumi Kikusui
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan
| | - Junko Ishihara
- Department of Food and Life Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (K.M.); (A.K.); (J.Y.)
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-city, Kanagawa 252-5201, Japan; (M.N.); (S.K.-A.); (K.M.); (T.K.)
- Correspondence: ; Tel.: +81-42-769-2669
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