[Myasthenia gravis in adults of institutions pertaining to the Mexican public health system: an analysis of hospital discharges during 2010].

Introduction: Epidemiological studies on MG in Mexico are mainly derived from experiences in referral centers. Objective: To describe the epidemiological characteristics of hospital discharges during the year 2010 with the diagnosis of MG in adults admitted in hospitals of the Mexican public healthcare system. Methods: The 2010 hospital discharges database of the SINAIS (Secretaria de Salud, Instituto Mexicano del Seguro Social [IMSS], IMSS Oportunidades, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado [ISSSTE], PEMEX, SEMAR and SEDENA) was reviewed. MG records were identified by the G70.0 code of the International Classification of Diseases, 10th revision (ICD-10). Results: During 2010, 5,314,132 hospital discharges were recorded (4,254,312 adults), out of which 587 (0.001%) were adults with MG (median age: 47 years; 60% females). Women with MG were significantly younger than men (median age: 37 vs. 54 years, respectively; p < 0.001). Median hospital stay was 6 days. Hospital mortality rate was 3.4%, without differences by gender. Age was associated with the probability of death. Conclusions: Gender-associated bimodal distribution of age was substantiated. Hospital mortality rate in Mexico is consistent with recent reports around the world. (Gac Med Mex. 2015;151:43-9) Corresponding author: Erwin Chiquete, erwinchiquete@hotmail.com; erwinchiquete@runbox.com