Appendix: List of Collaborators and Investigators in ISIIC study NATIONAL SOCIETIES / NETWORKS ENDORSING THE STUDY: European Society of Intensive Care Medicine (ESICM): President of the European Society of Intensive Care Medicine, Professor Jozef Kesecioglu; World Federation of Intensive and Critical Care (WFICC): President of the World Federation of Intensive and Critical Care, Professor Janice Zimmerman; Indian Society of Critical Care Medicine (ISCCM): President of the Indian Society of Critical Care Medicine, Dr. Dhruva Chaudhry; ICU Recovery Network; the Covid-19 Critical Care Consortium (CCCC); Japanese Society of Early Mobilization; Japanese Society of Education for Physicians and Trainees in Intensive Care (JSEPTIC); Infectious Diseases Association for Teaching and Education in Nippon (IDATEN); Emergency Medicine Alliance (EMA); Social Networking Service: Facebook, Twitter Web-site (https://form.jsea2005.org/isiic-study/) STUDY COORDINATION: Utako Nakayasu (Japanese Society of Intensive Care Medicine, Japan) DATA REVISION AND MANAGEMENT: Tomohiro Sonoo (Hitachi General Hospital, Hitachi, Ibaraki), (TXP Medical Co. Ltd., Tokyo), Takumi Ochiai (TXP Medical Co. Ltd., Tokyo) Site Investigators by country: ANDORRA: Hospital Nostra Senyora de Meritxell: Antoni Margarit Ribas ARGENTINA: Hospital Lagomaggiore: Graciela Zakalik, Hospital J.C.Perrando: Nelson C.A.Sanchez, Hospital Italiano de Buenos Aires: Federico Carini, AUSTRALIA: Monash University: Carol Hodgson, BANGLADESH: Evercare Hospital Dhaka: Zafor Iqbal, BELGIUM: UZ Leuven campus Gasthuisberg: Rik Gosselink, BOLIVARIAN REPUBLIC OF VENEZUELA: Hospita "Miguel Pérez Carreño"IVSS. Caracas: Ingrid von der Osten, BRAZIL: Hospital Municipal de Salvador: Jose Mario Meira Teles, Hospital Geral de Fortaleza: Carlos Augusto Ramos Feijo, Hospital Geral Cleriston Andrade: (no name available), Hospital Prontobaby: Roberta Esteves Vieira de Castro, Hospital Teresa de Lisieux: Albert Bacelar, Hospital municipal Ruth cardoso: Pedro Salomão Dias, Hospital e Maternidade São Cristóvão: José Roberto Aldrighi, Itaigara Memorial Gastro Hepato Endoscopia: (no name available), Hospital do Subúrbio: (no name abailable), Departamento de Enfermagem Médico-Cirúrgica: Paula Cristina Nogueira, COLUMBIA: Gestion Salud: Carmelo Dueñas, EGYPT: KSH: Osama sobh, Minia University Hospital: Yasmin K. NasrEldin, Assiut University Hospitals: Islam Ali Ahmed, Mahmoud M. Saad, Aliae Hussein, EL SALVADOR: General Hospital: Carlos E. Orellana-Jimenez, FRANCE: Hôpital Nord Franche-Comté: Fernando Daniel Berdaguer Ferrari, GH Sud Ile-de-France Melun: Sebastien Jochmans, GERMANY: UKSH: Peter Nydahl, GREECE: University Hospital of Ioannina: Georgios Papathanakos, General Hospital of Athens "Evaggelismos": Irini Patsaki, Saint Paul ("Agios Pavlos") General Hospital, Theodoros Aslanidis GUATEMALA: Hospital Roosevelt: Zonia Guzman, INDIA: Sanjay Gandhi Postgraduate Institute of Medical Sciences: Mohan Gurjar, Royalcare Superspeciality Hospital: Lakshmikanthcharan S, Sir Gangaram Hospital: Niraj Tyagi, Vijaya Hospital: (no name available), Aware Gleneagles global hospitals L.B Nagar: (no name available), Christian Medical College & Hospital: Madhu Ashok Kumar. D, Apollo Hospital: subbareddy, GBH cancer Hospital Udaipur: Virendra Kumar Goyal, Columbia Asia hospital white field Bangalore: (no name available), AIIMS Patna: Divendu Bhushan, Narayana Superspeciality hospital: (no name available), Seth Nandlal Dhoot Hospital: (no name available), Metro Multispeciality Hospital: Kapil Singhal, Cancer Institute (WIA): Radhika Dash, Nh Narayana Superspeciality Hospital Guwahati: (no name available), Tagore Hospitel Jalandhr India: Ziyokov Joshi, Gokul Superspeciality Hospital: Tejas Karmata, Jawahar Lal Nehru Medical College: Abu Nadeem, AIIMS Rishikesh: Nidhi Gupta, D Y Patil Hospital And Research Centre: Unnati Pandit, BYL Nair charitable hospital and TN medical College Mumbai: Swati Chhatrapati, Lipika Baliarsing, Charulata Deshpande, Indu.S, INDONESIA: RSUP Prof.Dr.R.D. Kandou Manado: Eka Yudha Lantang, IRAN: Shahid Rajaee hospital: Mansoor Masjedi, Imam Reza: Ata Mahmoodpoor, IRAQ: Baghdad teaching hospital: Abdullah Khudhur Ahmed, IRELAND: Cork University Hospital: Ahmed Elsaka, Ivan Hayes, Our Lady of Lourdes hospital: Tharwat Aisa, ITALY: Ospedale Sant’Andrea - Sapienza University: monica rocco, Ospedale Magalini Villafanca - Aulss9 Scaligera: Plinio Calligaro, JAPAN: Saiseikai Utsunomiya Hospital: Takayuki Ogura, The University of Tokyo Hospital: Hikoro Matsui, Kobari General Hospital: Masayuki Oshima, Kimitsu Chuo Hospital: Nobuya Kitamura, Kobe University Hospital: Moritoki Egi, Kyorin University Hospital: Kiyoshi Moriyama, Yoshihiro Yamaguchi, Nagasaki University Hospital: Tetsuya Hara, Kochi Medical School Hospital: Yoshifumi Katsumata, Kagoshima City Hospital: Masataka Nakamura, Higashiosaka City Medical Center: Hodaka Kumano, Kariya Toyota General Hospital: Masanao Miura, Aichi Medical University Hospital: Naoshi Takeyama, Shizuoka General Hospital: Keisuke Ohta, Jichi Medical University Hospital: Shin Nunomiya, Kawasaki Medical School General Medical Center: Hiroshi Katayama, Eastern Chiba Medical Center: Eizo Watanabe, Saku Central Hospital Advanced Care Center: Kunihiko Okada, Wakayama Medical University Hospital: Kyohei Miyamoto, University of the Ryukyus hospital: Tatsuya Fuchigami, National Center for Global Health and Medicine: Tatsuya Okamoto, Japanese Red Cross Maebashi Hospital: Hiroyuki Suzuki, Sendai Kousei Hospital: Jun Ito, Yamaguchi University Hospital: Mishiya Matsumoto, Gifu University Hospital: Takahito Miyake, Chiba Emergency Medical Center: Noriyuki Hanaoka, Shizuoka Children's Hospital: Masaki Osaki, Tatsuya Kawasaki, Ageo Central General Hospital: Kanbe Fumiko, Hokkaido University Hospital: Hitoshi Saito, Gunma University Hospital: Masafumi Kanamoto, Shinonoi General Hospital: So Oishi, Fukui Prefectural Hospital: Minoru Hayashi, Japanese Red Cross Kyoto Daiichi Hospital: Masahito Horiguchi, Tokyo medical university hospital: Koichi Nakazawa, Tokyo Medical University Ibaraki Medical Center: Yuko Kuroda, Toyooka Public Hospital: Makoto Kobayashi, Kyoto Medical Center: Satoru Beppu, Teine Keijinaki hospital: Takako Akimoto, Kagawa University Hospital: Tomonori Sugawara, Hyogo Prefectural Kobe Children's Hospital: Hiroshi Kurosawa, Sendai City Hospital: Kohkiti Andoh, Subaru Health Insurance Society Ota Memorial Hospital: Takeshi Nara, Nanbu Medical Center / Nanbu Child Medical Center: Takehiro Umemura, Chiba University Hospital: Ryuzo Abe, Sapporo Medical University Hospital: Yoshiki Masuda, Seirei Hamamatsu General Hospital: Takahiro Atsumi, Shinshu University Hospital: Sari Shimizu, Saiseikai Fukuoka General Hospital: Hirofumi Norio, Nagano Children's Hospital: Masatomo Kitamura, Saiseikai Kumamoto Hospital: Tadashi Sawamura, Juntendo University Hospital: Chieko Mitaka, Akita City Hospital, Souhaku Shigeomi, Kumamoto University Hospital: Tatsuo Yamamoto, Osaka Red Cross Hospital: Kenichiro Nishi, Japanese Red Cross Saitama Hospital: Kazuya Kiyota, Asahikawa Medical University Hospital: Naohiro Kokita, Osaka Mishima Emergency Critical Care Center: Hitoshi Kobata, Kagawa Prefectural Central Hospital: Akihito Hirasaki, National Hospital Organization Kumamoto Medical Center: Toshihiro Sakurai, Hiroshima City Hiroshima Citizens Hospital: Makoto Takatori, Okinawa Kyodo Hospital: Yutaka Sakuda, Chubu Tokushukai Hospital: Hiroshi Iha, Saitama Medical Center: Koyama Kaoru, Saitama Medical University International Medical Center: Futoshi Kotajima, Saiseikai Senri Hospital: Hirotaka Sawano, Osaka Medical College Hospital: Osamu Umegaki, Okayama University Hospital: Hiromichi Naito, Jichi Children’s Medical Center Tochigi: Naoyuki Taga, Tokushima Prefectural Central Hospital: Emiko Nakataki, Fukui Cardiovascular Center: Ikuo Moriuchi, National Hospital Organization Hokkaido Medical Center: Yasuo Shichinohe, Steel Memorial Hirohata Hospital: Sinkichi Hatanaka, Yamaguchi Grand Medical Center: Hideo Oka, Asahi General Hospital: Kyoji Oe, Narita Red Cross Hospital: Yoshihisa Tateishi, Osaka University Hospital: Junya Shimazaki, Kyoto University Hospital: Shinichi Kai, Shinshu University: Kenichi Nitta, Yokohama Municipal Citizen's Hospital: Hajime Hayami, Mitsui Memorial Hospital: Katsuyuki Terajima, National Hospital Organization Shizuoka Medical Center: Akiko Ozawa, Japanese Red Cross Kyoto Daini Hospital: Hiromichi Narumiya, Nara Medical University: Satoki Inoue, Kansai Electric Power Hospital: Takuya Hashino, Kanazawa University Hospital: Masaki Okajima, Osaka General Medical Center: Takeshi Nishida, Yodogawa Christian Hospital: Noboru Kato, Hyogo Prefectural Kakogawa Medical Center: Hiroaki Shimizu, Showa University Hospital: Kazuki Kikuyama, Japanese Red Cross Nagoya Daini Hospital: Hiroe Takasu, Takarazuka City Hospital: Hideaki Imanaka, Osaka City General Hospital: Kazuaki Shigemitsu, Yokosuka Kyosai Hospital: Usuda Yutaka, University of Miyazaki Hospital: Masahiko Taniguchi, Jikei University Katsushika medical Hospital: Toko Fukushima, Nippon Medical School Tama Nagayama Hospital: Masamune Kuno, Fujisawa City Hospital: Osamu Akasaka, International University of Health and Welfare Atami Hospital: Masao Nagayama, Urasoe general hospital: Munekatsu Miyahira, Keio University Hospital: Kentaro Tomita, Sapporo City General Hospital: Masahiro Takahashi, Hyogo Brain & Heart Center at Himeji: Yasuyo Taniguchi, Saiseikai Kawaguchi General Hospital: Yuya Miyazaki, The University of Tokyo Hospital: Naoki