Impact of obesity in patients infected with 2009 influenza A(H1N1)

Emili Díaz, Alejandro Rodríguez, Ignacio Martin-Loeches, Leonardo Lorente, María Del Mar Martín, Juan Carlos Pozo, Juan Carlos Montejo, Angel Estella, Ángel Arenzana, Jordi Rello, Pedro Cobo, Javier Martins, Cecilia Carbayo, Emilio Robles-Musso, Antonio Cárdenas, Javier Fierro, Ocaña Fernández, Rafael Sierra, Ma Jesús Huertos, R. GuerreroEnrique Márquez, Manuel Rodríguez-Carvajal, Antonio Jareño, José Pomares, José Luis Ballesteros, Yolanda Fernández, Francisco Lobato, José F. Prieto, José Albofedo-Sánchez, Pilar Martínez, Miguel Angel Díaz Castellanos, Guillermo Sevilla, José Garnacho-Montero, Rafael Hinojosa, Esteban Fernández, Ana Loza, Cristóbal León, Dolores Ocaña, Manuel Luis Avellanas, Arantxa Lander, S. Garrido Ramírez De Arellano, M. I.Marquina Lacueva, Pilar Luque, Ignacio González, Jose Ma Montón, Jose Ma Díaz, Pilar López-Reina, Sergio Sáez, Lisardo Iglesias, Carmen Pascual González, Quiroga, Águeda García-Rodríguez, Lorenzo Socias, Pedro Ibánez, Marcío Borges-Sa, A. Socias, A. Del Castillo, Ricard Jordà Marcos, José M. Bonell, Ignacio Amestarán, Sergio Ruiz-Santana, Juan José Díaz, Sisón, David Hernández, Ana Trujillo, Luis Regalado, Mar Martín, Sergio Martínez, J. J. Cáceres, Borja Suberviola, P. Ugarte, Fernando García-López, Angel Álvaro Alonso, Antonio Pasilla, Ma Luisa Gómez Grande, Antonio Albaya, Alfonso Canabal, Luis Marina, Juan B.López Messa, Ma Jesús López Pueyo, Zulema Ferreras, Santiago Macias, José Ángel Berezo, Jesús Blanco Varela, Ojeda A. Andaluz, Antonio Álvarez Terrero, Fabiola Tena Ezpeleta, Rosa Ma Catalán, Miquel Ferrer, Antoni Torres, Sandra Barbadillo, Lluís Cabré, Assumpta Rovira, Francisco Álvarez-Lerma, Antonia Vázquez, Joan Nolla, Francisco Fernández, Joaquim Ramón Cervelló, Rafael Mañéz, J. Ballús, Rosa Ma Granada, Jordi Vallés, Marta Ortíz, C. Guía, Fernando Arméstar, Joaquim Páez, Jordi Almirall, Xavier Balanzo, Elena Arnau, Lluis Llopart, Mercedes Palomar, Iñaki Catalán, Josep Ma Sirvent, Cristina Ferri, Nerea López De Arbina, Mariona Badía, Montserrat Valverdú-Vidal, Fernando Barcenilla, Mònica Magret, M. F. Esteban, José Luna, Juan Ma Nava, J. González De Molina, Zoran Josic, Francisco Gurri, Thiago Lisboa, Diego De Mendoza, Sandra Trefler, Alberto Fernández-Zapata, Teresa Recio, Abilio Arrascaeta, Ma José García-Ramos, Elena Gallego, F. Bueno, Ma Lourdes Cordero, José A. Pastor, Luis Álvarez-Rocha, Dolores Vila, Ana Díaz Lamas, Javier Blanco Pérez, M. Ortiz Piquer, Eleuterio Merayo, Victor Jose López-Ciudad, Juan Cortez, Eva Vilaboy, Eva Maria Saborido, Raul José González, Santiago Freita, José Luis Monzón, Félix Goñi, Frutos Del Nogal Sáez, M. Blasco Navalpotro, Ma Carmen García-Torrejón, César Pérez-Calvo, Diego López, Luis Arnaiz, S. Sánchez-Alonso, Carlos Velayos, Francisco Del Río, Miguel Ángel González, María Cruz Martín, José Ma Molina, Patricia Albert, Ana De Pablo, José Eugenio Guerrero, Jaime Benitez Peyrat, José A. Juliá, Enrique Cerdá, Manuel Alvarez, Carlos Pey, Montse Rodríguez, Eduardo Palencia, Rafael Caballero, Rafael Guerrero, Concepción Vaquero, Francisco Mariscal, S. García, Almudena Simón, Nieves Carrasco, Isidro Prieto, A. Liétor, R. Ramos, Beatríz Galván, Juan C. Figueira, M. Cruz Soriano, P. Galdós, Bárbara Balandin Moreno, Fernández Del Cabo, Cecilia Hermosa, Federico Gordo, Alejandro Algora, Amparo Paredes, J. A. Cambronero, Sonia Gómez-Rosado, Sofía Martínez, F. Felices Abad, Mariano Martinez, Sergio Manuel Butí, Gil Rueda, Francisco García, Laura Macaya, Enrique Maraví-Poma, I. Jimenez Urra, L. Macaya Redin, A. Tellería, Josu Insansti, Nagore González, Pilar Marco, Loreto Vidaur, B. Santamaría, Juan Carlos Vergara, Jose Ramon Iruretagoyena Amiano, Alberto Manzano, Carlos Castillo Arenal, José Blanquer, Roberto Reig Valero, A. Belenger, Susana Altaba, Bernabé Álvarez-Sánchez, Santiago Alberto Picos, Ángel Sánchez-Miralles, Juan Bonastre, M. Palamo, Javier Cebrian, José Cuñat, Belén Romero, Rafael Zaragoza, Virgilio Paricio, Asunción Marques, S. Sánchez-Morcillo, S. Tormo, J. Latour, M. Ángel García

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107 Scopus citations

Abstract

Objective: A large proportion of patients infected with 2009 influenza A(H1N1)(A[H1N1]) are obese. Obesity has been proposed as a risk factor influencing outcome in these patients. However, its role remains unclear. We evaluate the outcome of patients who are obese and infected with A(H1N1) in the ICU, determining whether obesity is a risk factor for mortality. Methods: This was a prospective, observational, and multicenter study performed in 144 ICUs in Spain. Data were obtained from the Grupo de Trabajo en Enfermedades Infecciosas de la Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias (GTEI/SEMICYUC) registry. Adult patients with A (H1N1) that was confirmed by real-time polymerase chain reaction were included in the analysis. Patients who were obese (BMI>30) were compared with patients who were nonobese. Cox regression analysis was used to determine adjusted mortality. Differences of P<.05 were considered significant. Results: In January 2010, the GTEI/SEMICYUC registry had complete records for 416 patients. One hundred and fifty patients (36.1%) were obese, of whom 67 (44.7%) were morbidly obese (BMI>40). Mechanical ventilation (MV) was more frequently applied in patients who were obese (64% vs 52.4%, P<.01) Patients with obesity remained on MV longer than patients who were nonobese (6.5 ± 10.3 days vs 9.3 ± 9.7 days, P =.02), had longer ICU length of stay(10.8 ± 12.1 days vs 13.7 ± 11.7 days, P=.03), and had longer hospitalization (18.2 ± 14.6 days vs 22.2 ± 16.5 days, P=.02). Mortality adjusted by severity and potential confounders identified that obesity was not significantly associated with ICU mortality (hazard ratio, 1.1;95% CI, 0.69-1.75; P=.68). Conclusions: In our cohort, patients who were obese and infected with A (H1N1) did not have increased mortality. However, there was an association between obesity and higher ICU resource consumption.

Original languageEnglish
Pages (from-to)382-386
Number of pages5
JournalChest
Volume139
Issue number2
DOIs
StatePublished - 1 Feb 2011
Externally publishedYes

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