The authors also suggested that caregiver burden may be affected by less-obvious factors like the caregiver’s perception of the patient’s suffering. We have earlier highlighted the concept of “inappropriate worry.” We correlated worry among caregivers 48 to 72 h after patient admission with their perception of change in the patients’ critical state and found a clear discrepancy.4 Out of 76 family members, only 50% experienced worry that was in keeping with the change in the patients’ condition. In the remaining 50%, the worry was incongruous. We also found that in more than one-half the cases, there was a discrepancy between the objective change in the patients’ acute status (measured as the change in the Acute Physiology and Chronic Health Evaluation II score since admission) and the caregivers’ perception of the change (subjective change) in the patients’ critical state.4 Although our study was cross-sectional, the long-term effects of this discrepancy, as well as whether mitigating this discrepancy relieves caregiver burden, remain to be explored. Finally, discerning whether satisfying relevant caregiver needs during a patient’s hospital course and follow-up has a long-term effect on the caregiver is another area that could help to identify targets to reduce caregiver burden.