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  Indian J Med Microbiol
 

Table 1: Demographic and physical characteristics of patients (n=781). Data are mean±sd or n (%), ranges for quantitative data, ci 95% for frequency data. The last column is coefficients of correlation between each independent factor and efficiency of mask ventilation

Table 1: Demographic and physical characteristics of patients (<i>n</i>=781). Data are mean±sd or <i>n</i> (%), ranges for quantitative data, ci 95% for frequency data. The last column is coefficients of correlation between each independent factor and efficiency of mask ventilation