Figure 3. Factors Independently Associated With the Presence of PTSD-Related Symptoms in Family Members of Patients With ARDS.

Variables considered for the LASSO step included sex, age, marital status, profession, and social support. For the Hosmer and Lemeshow goodness of fit test, P = .26. The sensitivity analyses took into account a center effect and another one that used a set of data after imputation of missing variables provided similar results and are reported in eTables 8 and 9 in the Supplement.

^aValues are given according to posttraumatic stress disorder (PTSD) status, and values are reported as No./total (%) unless otherwise indicated.

^bIndicates the odds ratio per 10-years increase.

^cLevel of social support was evaluated on a scale ranging from 0 (extremely limited) to 10 (extremely effective).

^dIndicates the odds ratio per additional point of the social support scale.