Objective: To verify the variables related to the comfort level of family members of people in intensive care units.Methods: Cross-sectional study, conducted in six intensive care units, with 250 family members, using the Comfort Scale for Family Members of People in Critical Health State. The sample data were analyzed in absolute and relative frequencies, means and standard deviation. The level of global comfort and dimension were analyzed by the arithmetic mean of the response levels of the Comfort Scale for Family Members of People in Critical Health State. The One-Way test (ANOVA) was used to analyze differences in the means of the comfort level of the previously mentioned scale according to variables of interest.Results: The variables severity level, hospitalization time and nature of the relationship of the family member and relative, as well as gender, age, income were statistically significant in relation to the comfort level. Conclusions: Variables related to the context of hospitalization of the relative and sociodemographic data of the family members were related to the level of comfort.