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Search DetailsKATAOKA AoiGraduate School of Medicine / Department of Future Social MedicineAssistant Professor
Research activity information
■ Award■ Paper
- OBJECTIVES: To protect workers and individuals from second-hand smoke exposure, Japan's national indoor smoking ban was enforced on April 1, 2020. However, certain exemptions were made for eating and drinking establishments. Local ordinances restricted these exemptions to increase their effectiveness. We aimed to evaluate the 2-year impact of the national ban and local ordinances on indoor smoking policies in eating and drinking establishments over a 2-year period. STUDY DESIGN: Panel data analysis. METHODS: From a commercial database of eating and drinking establishments, we used area-level summary data of 320,693 establishments for August 2016 and individual establishment data extracted biannually between January 2020 and December 2022 (n = 329,322 to 403,133). We calculated the category-specific and weighted proportions of smoke-free establishments. We analysed the short-term and trend changes using an interrupted time-series analysis. RESULTS: The proportion of smoke-free establishments increased after the national ban (+5.7 % points). Local ordinances restricting the exemption for the establishments with non-family employees enhanced the impact of the national ban (+7.8 % points). In December 2022, the proportions of smoke-free establishments were 68.3 % in restaurants, 70.2 % in cafés, 32.8 % in izakaya, and 25.0 % in bars. CONCLUSIONS: The indoor smoking ban has promoted indoor smoke-free policies in eating and drinking establishments in Japan. However, many establishments, nearly two-thirds of izakaya and bars, remain smoking-allowed, probably owing to exemptions and non-compliance. To effectively reduce second-hand smoke exposure in eating and drinking establishments, it is necessary to minimise exemptions by revising laws or enforcing additional ordinances and promoting compliance with these legislations.Mar. 2026, Public health, 252, 106146 - 106146, English, International magazine[Refereed]Scientific journal
- 2026, Japanese Journal of Public Health, Japanese[Refereed]Scientific journal
- Oct. 2025, 日本公衆衛生学雑誌, 72(12) (12), Japanese, Domestic magazine[Refereed]Scientific journal
- BACKGROUND: In April 2020, the revised Health Promotion Act and Tokyo Metropolitan Ordinance to prevent second-hand smoke (SHS) exposure was fully enforced. The government has provided an exemption for small-scale, existing establishments by allowing them 'unregulated' status, and it is unclear to what extent indoor smoking bans have been applied in these small bars and restaurants. In this study, we report on indoor smoking status before/after the enforcement of the current legislation both regulated and unregulated restaurants and bars. METHODS: Self-questionnaire surveys were conducted in March 2020 and 2021. We applied the questionnaire to 6,000 restaurants and bars in Tokyo, Osaka and Aomori in the first survey and to 3609 restaurants in the second survey, including those that had responded to the first survey as well as 2800 additional establishments. We calculated the proportions of indoor smoking status before/after enforcement both regulated and unregulated establishments. In addition, we calculated the national estimate of indoor smoking status in all restaurants and bars in Japan after the enforcement using a restaurant guide website and the results of this study. RESULTS: The responded establishments were 879 to the first (response rate: 14.7%) and 837 to the second (response rate: 23.2%). Of all the establishments, 67.0% kept "separate smoking or smoking" status, and 62.1% of unregulated establishments kept "separate smoking or smoking". Although all the regulated establishments were required to change to "no smoking" by law, 78.4% that were "separate smoking or smoking" before the enforcement did not change their indoor smoking status. The national estimate of smoking status showed that the proportion of "no smoking" would change from 54.5% to 69.4% after the enforcement. If all regulated establishments changed smoking status to "no smoking", the ideal proportion of "no smoking" would be 85.8% in Japan. CONCLUSIONS: More unregulated restaurants and bars changed to "no smoking" than planned before the enforcement. In contrast, most of the regulated restaurants and bars continued to be "separate smoking or smoking" in non-compliance with the legislation. In order to prevent SHS exposure in all restaurants and bars, we need comprehensive legislation for indoor smoking bans in Japan.Lead, Nov. 2024, BMC public health, 24(1) (1), 3327 - 3327, English, International magazine[Refereed]Scientific journal
- Japan Medical Association, 2024, JMA Journal, 7(3) (3), 319 - 327[Refereed]Scientific journal
- Lead, EpiSmart Science Vector Ltd, Dec. 2023, Asian Pacific Journal of Cancer Prevention, 24(12) (12), 4017 - 4023[Refereed]Scientific journal
- Lead, (一財)厚生労働統計協会, Jun. 2023, 厚生の指標, 70(6) (6), 9 - 18, Japanese都道府県別の社会経済状況を測る合成指標の開発:健康寿命の都道府県間格差対策に向けて[Refereed]
- Background: Area differences in life expectancy (LE) and healthy life expectancy (HLE) in large geographical units have been monitored around the world. Area characteristics may be based on culture, history, socioeconomic status and discrimination in smaller geographical units, so it is important to consider these when looking at health inequality. We aimed to evaluate LE, HLE, and non-healthy life expectancy (NHLE) in 1707 municipalities using Areal Deprivation Index (ADI) in Japan for the first time. Methods: We calculated the observed LE, HLE, and NHLE using death, population, and Long-term care insurance data for 2010-2014 and applied the variance weighted least squares model to estimate LE, HLE, and NHLE by 100 percentiles using the standardized ADI. Findings: The estimated LE, HLE, and NHLE became lower as the deprivation index worsened: the differences between the most and least deprived areas for HLE were 2·49 years for LE and 2·32 years for HLE in males; 1·22 years for LE and 0·93 years for HLE in females. The observed LE and HLE in the most deprived areas were much lower than other areas. Interpretation: Using ADI has enabled us to see the disparity within municipalities precisely. LE and HLE outlier for the 100th percentile might be linked to historical areal deprivation and marginalization. Precise monitoring of socioeconomic status-based health inequalities could help manage these inequalities by identifying the groups most in need of intervention. Funding: The Ministry of Education, Science and Culture of Japan (a Grant-in-Aid for Scientific Research [A] No. 20H00040 and 18H04071).Lead, Sep. 2021, The Lancet regional health. Western Pacific, 14, 100204 - 100204, English, International magazine[Refereed]Scientific journal
- Lead, 2021, 産業衛生学雑誌, 63(2) (2)Comparison of the two methods of defining high-stress on the Japanese Stress Check Program[Refereed]
- Lead, 2021, 日本公衆衛生雑誌, 68(10) (10)Current status and intention to change indoor smoking rules by enforcing smoke-free legislation in Japan[Refereed]
- Lead, 2021, 癌と化学療法, 48(12) (12)A Systematic Review of Clinical and Epidemiological Studies Using Record Linkage Data between Hospital Based Cancer Registries and Biospecimen Data[Refereed]
- BACKGROUND: As people age, they spend more time in and around their domestic environments, within which opportunities for health-enhancing physical activity (PA) may be limited. We examined the associations of frequency of excursions from home with accelerometer-determined PA and the total and prolonged sedentary behavior (SB, sitting for ≥30 min) among community-dwelling older adults. METHODS: Overall, 434 older adults (men, 57.1 %; age, 70-79 years) wore an accelerometer (HJA-350IT, Omron Healthcare) for 7 days. Time spent in SB, light-intensity PA (LPA), moderate-to-vigorous PA (MVPA), and prolonged SB bout (≥30 min) were calculated. Frequencies of excursions from home were categorized as 0-3, 4-5, and 6-7 days/week. Associations of excursions with PA and SB were tested by analysis of covariance adjusted for sociodemographic characteristics. RESULTS: Frequencies were 14.3 %, 31.1 %, and 54.6 % for excursions 0-3, 4-5, and 6-7 days/week, respectively. For men, less frequent excursions from home were significantly associated with less MVPA and more total and prolonged SB times (estimated means [minutes/day]: MVPA, 32, 42, and 48; total SB, 589, 549, and 539; prolonged SB, 344, 288, and 265; respectively; p < 0.05). LPA was not statistically significant (p = 0.09). For women, less frequent excursions were significantly associated with all PA outcomes (SB: 536, 497, and 467; prolonged SB: 260, 213, and 204; LPA: 328, 363, and 379; MVPA: 36, 39, and 54, respectively). CONCLUSIONS: Among community-dwelling Japanese older adults, more frequent excursions from home were associated with more PA, less SB, and more-favorable SB patterns, suggesting a potential strategy for preventive-health initiatives.Elsevier BV, Jan. 2021, Archives of Gerontology and Geriatrics, 92, 104276 - 104276, English, International magazine[Refereed]Scientific journal
- 2025, 日本疫学会学術総会講演集(Web), 35th1995-2019年における子どもの死因別死亡率の地域差とトレンド:市区町村別社会経済指標による評価
- 2025, 日本疫学会学術総会講演集(Web), 35th地域の社会経済的な困窮度による自殺手段の相違:2000-2020年人口動態統計の分析
- 2025, 日本疫学会学術総会講演集(Web), 35thがん患者の純生存率算出のための都道府県別生命表の開発
- (一社)日本癌治療学会, Oct. 2024, 日本癌治療学会学術集会抄録集, 62回, EN1 - 8, English子宮頸がんの予防・検診・アウトカムにおける地域格差
- 2024, 次期健康づくり運動プラン作成と推進に向けた研究 令和5年度 総括・分担研究報告書(Web)次期健康づくり運動プラン作成と推進に向けた研究 社会環境の整備・健康格差の縮小に関する検討
- 2024, 日本疫学会学術総会講演集(Web), 34th発達障がい児への言葉による虐待の判断に関連する要因の検討:全国自治体実態調査
- (一社)日本疫学会, Feb. 2023, Journal of Epidemiology, 33(Suppl.1) (Suppl.1), 120 - 120, Japanese2010-2019年の健康寿命・平均寿命とその格差の推移 市区町村別社会経済指標による評価
- (一社)日本疫学会, Feb. 2023, Journal of Epidemiology, 33(Suppl.1) (Suppl.1), 124 - 124, Japanese人口動態統計を用いた婦人科がんにおける年齢調整死亡率の市区町村別地域指標との関連とその推移
- (一社)日本疫学会, Feb. 2023, Journal of Epidemiology, 33(Suppl.1) (Suppl.1), 140 - 140, Japanese高緯度地域ほど膵臓がん年齢調整死亡率が高い 都道府県別データによる生態学的研究
- (一社)日本疫学会, Feb. 2023, Journal of Epidemiology, 33(Suppl.1) (Suppl.1), 147 - 147, Japanese福祉行政報告例による2015年~2020年の児童虐待相談件数の動向と地域差
- 2023, 日本公衆衛生学会総会抄録集(CD-ROM), 82ndHPVワクチン接種率と社会経済指標・都会指標との関連
- 日本公衆衛生学会, Sep. 2022, 日本公衆衛生学会総会抄録集, 81回, 222 - 222, Japanese都道府県の社会経済状況に関する包括指標の開発と健康寿命を用いた予測妥当性の評価
- 日本公衆衛生学会, Sep. 2022, 日本公衆衛生学会総会抄録集, 81回, 318 - 318, Japanese飲食店における喫煙環境と従業員の新型コロナウイルスワクチン接種状況
- 日本公衆衛生学会, Nov. 2021, 日本公衆衛生学会総会抄録集, 80回, 189 - 189, Japanese改正健康増進法施行前後における飲食店の受動喫煙対策と感染症対策の実態把握
- 日本公衆衛生学会, Oct. 2020, 日本公衆衛生学会総会抄録集, 79回, 106 - 106, Japanese改正健康増進法、全面施行! 進捗評価と今後の推進方策 飲食店における受動喫煙防止の状況
- 東京医科大学医学会, Jul. 2018, 東京医科大学雑誌, 76(3) (3), 295 - 296, Japanese
- (公社)日本産業衛生学会, May 2018, 産業衛生学雑誌, 60(臨増) (臨増), 306 - 306, Japanese長時間労働と高ストレス者判定との関連 ワークエンゲイジメントの交互作用
- 日本産業ストレス学会, Dec. 2017, 産業ストレス研究, 25(1) (1), 159 - 159, Japanese
- (一社)日本産業精神保健学会, Jul. 2017, 産業精神保健, 25(増刊) (増刊), 153 - 153, Japanese長時間労働と職業性ストレス反応との関連
■ Lectures, oral presentations, etc.
- 第9回かごしまデータ科学シンポジウム in FUKUOKA, Dec. 2025地理的剥奪指標別のがん年齢調整死亡率のトレンドNominated symposium
- 第84回日本公衆衛生学会, Oct. 2025地域の社会経済的困窮度による大阪府後期高齢者のオーラルフレイル格差Oral presentation
- 第84回日本公衆衛生学会, Oct. 20252013-18 年における兵庫県市区町村別糖尿病ハイリスク有病率に関連する地域社会環境要因Oral presentation
- 第84回日本公衆衛生学会, Oct. 2025改正健康増進法の施行に伴う飲食店の禁煙化とその規定要因Oral presentation
- 第35回日本疫学会学術総会, Feb. 2025地域の社会経済的な困窮度による自殺手段の相違:2000- 2020年人口動態統計の分析Poster presentation
- 第35回日本疫学会学術総会, Feb. 20251995-2019年における子どもの死因別死亡率の地域差 とトレンド: 市区町村別社会経済指標による評価Oral presentation
- 第35回日本疫学会学術総会, Feb. 2025がん患者の純生存率算出のための都道府県別生命表の開発Poster presentation
- 第83回日本公衆衛生学会, Oct. 2024小学校区別社会環境要因による市町村国保の特定健診受診率の格差:LIFE studyOral presentation
- 第83回日本公衆衛生学会, Oct. 2024HPVワクチン累積接種割合の地域格差とその要因分析: VENUS StudyOral presentation
- 第83回日本公衆衛生学会, Oct. 2024地域の社会経済的困窮度による自殺の地域格差:人口動態統計を用いた記述疫学研究Oral presentation
- 第83回日本公衆衛生学会, Oct. 2024日本における社会経済指標別純生存率の推定のための生命表の作成Oral presentation
- 第34回日本疫学会学術総会, Jan. 2024発達障がい児への言葉による虐待の判断に 関連する要因の検討:全国自治体実態調査Poster presentation
- International Asian Cancer and Chronic Disease Screening Network, Dec. 2023Socioeconomic and rural-urban inequalities in cervical cancer screening uptake and regional differences in policies related to cervical cancer screeningPoster presentation
- 第82回日本公衆衛生学会, Nov. 20232019年~2021年の都道府県別児童虐待件数の動向とCOVID-19による影響Oral presentation
- International Association of Cancer Registries, Nov. 2023Socioeconomic and rural-urban inequalities in HPV vaccination, screening uptake and cervical cancer outcomes in JapanPoster presentation
- 第4回かごしまデータ科学シンポジウム, Jul. 2023公的統計データを用いた地域の社会経済状況による健康格差のモニタリング:国・自治体の保健衛生行政への還元を目指してNominated symposium
- 第33回日本疫学会, Feb. 2023高緯度地域ほど膵臓がん年齢調整死亡率が高い 都道府県別データによる生態学的研究
- 第33回日本疫学会, Feb. 2023人口動態統計を用いた婦人科がんにおける年齢調整死亡率の市区町村別地域指標との関連とその推移
- 第33回日本疫学会, Feb. 2023福祉行政報告例による2015年~2020年の児童虐待相談件数の動向と地域差
- 第32回日本禁煙推進医師歯科医師連盟学術総会, Feb. 2023改正健康増進法の施行により飲食店の禁煙化はどの程度進んだか :調査から見えてきた実態と飲食店の声Nominated symposium
- 第33回日本疫学会, Feb. 20232010-2019年の健康寿命・平均寿命とその格差の推移:市区町村別社会経済指標による評価Poster presentation
- 第81回日本公衆衛生学会, Oct. 2022都道府県の社会経済状況に関する合成指標の開発と健康寿命を用いた健康格差の測定可能性の評価Oral presentation
- 第81回日本公衆衛生学会, Oct. 2022飲食店における喫煙環境と従業員の新型コロナウイルスワクチン接種状況Poster presentation
- 第81回日本公衆衛生学会, Oct. 2022改正健康増進法全面施行後の禁煙飲食店割合の変化:民間グルメデータベースによる検討Oral presentation
- 日本がん予防学会総会(がん予防学術大会2022), Jul. 2022院内がん登録・生活習慣アンケートをリンケージしたバイオバンクデータベースの活用に向けて:大阪医科薬科大学の取り組みOral presentation
- 第32回日本疫学会学術総会, Jan. 2022人口規模・社会経済状況を考慮した健康寿命の都道府県内格差の計測Oral presentation
- 第80回日本公衆衛生学会総会, Dec. 2021住民による自主的な運動グループ拠点数・活動頻度と要介護認定割合の関係
- 第80回日本公衆衛生学会総会, Dec. 2021改正健康増進法施行前後における飲食店の受動喫煙対策と感染症対策の実態把握Oral presentation
- 日本がん登録協議会第30回学術集会, Jun. 2021がん登録と生体試料のレコードリンケージデータによる大腸がんの臨床・疫学研究に関するシステマティックレビューOral presentation
- 第31回日本疫学会学術総会, Feb. 2021都道府県内の健康寿命・平均寿命の社会経済格差と都道府県全体の健康指標における関連性の検討Oral presentation
- 第78回日本公衆衛生学会総会, Oct. 2019飲食店の受動喫煙対策におけるウェブやSNSの活用 ケムラン
- 第78回日本公衆衛生学会総会, Oct. 2019禁煙化で飲食店に何が起こったか 経営、労働安全衛生面に関する質的調査
- 第78回日本公衆衛生学会総会, Oct. 2019住民型アクションリサーチによる飲食店の受動喫煙対策:東京都文京区版ケムランOral presentation
- 日本がん登録協議会第28回学術集会, Jun. 2019院内がん登録と生体資料を用いた臨床・疫学研究レビュー:バイオバンク事業におけるがん登録の活用可能性についてOral presentation
- 第29回日本疫学会学術総会, Jan. 2019市区町村別地理的剥奪指標からみた健康寿命の格差の計測Poster presentation
- 第181回東京医科大学医学会総会, Jun. 2018地域在住高齢者の目的別の外出と主観的健康観の関連~5年間のコホート研究より~
■ Research Themes
- 厚生労働省, 厚生労働科学研究費補助金, Apr. 2025 - Mar. 2028, Coinvestigator受動喫煙対策等たばこ対策のエビデンス構築のための研究
- 神戸市, 2024 - Mar. 2028, Principal investigator健康寿命の延伸と格差縮小に寄与する地域の 社会環境要因の検証
- 日本学術振興会, 科学研究費助成事業, 若手研究, 神戸大学, Apr. 2024 - Mar. 2027官学協働による根拠に基づいた健康寿命の格差縮小施策の立案:部署横断型データの解析
- 厚生労働省, 厚生労働科学研究費 がん対策総合研究事業, Apr. 2023 - Mar. 2026誰一人取り残さないがん対策における格差のモニタリングと要因解明に資する研究
- 日本学術振興会, 科学研究費助成事業, 挑戦的研究(萌芽), 大阪医科薬科大学, Jun. 2022 - Mar. 2024, Coinvestigator市民参加でつくる「住むだけで健康になるスマートシティ」
- 日本学術振興会, 科学研究費助成事業 学術変革領域研究(A)(公募研究), 2023年度 学術変革領域研究(A)(公募研究), 2023 - 2024居住地域の社会環境要因に基づいた乳幼児~青年期の死因別死亡率格差のメカニズム解明
- 統計数理研究所, 公募型共同利用, 2021 - 2023, Coinvestigator公的統計資料を用いた健康格差の定量化:地域差と経年変化の要因分析
■ Media Coverage
- 毎日新聞, Jun. 2025, https://mainichi.jp/articles/20250616/ddm/002/070/082000c「煙らない店」の応援団Paper
- 産経新聞, May 2025, https://www.sankei.com/article/20250508-3CWIWQTI4BN67J3ANWJU35DISI/受動喫煙防止の改正健康増進法施行5年 飲食店全面禁煙いたらず 部分規制では限界指摘もPaper
- Wellulu, Jul. 2023, https://wellulu.com/new-discovery/healthy-life-expectancy/5038/健康格差の原因とは?社会経済状況が健康寿命に影響する可能性【大阪医科薬科大学・伊藤先生、片岡先生】Internet
