fa عمومى General پژوهشي Research <p style="text-align: justify;"><strong>Background:</strong> The safety of rehabilitation centers is of great importance to ensure the&nbsp;well-being of patients. The present study aimed to determine non-structural and functional&nbsp;vulnerability of state rehabilitation centers of Tehran City welfare organization in disasters&nbsp;using national standard instruments in 2014.<br> <strong>Materials and Methods:</strong> This study has a descriptive and cross-sectional design. A total&nbsp;of 17 rehabilitation centers affiliated with Tehran welfare organization are investigated. The&nbsp;vulnerability of centers was measured using 2 checklists of non-structural and functional&nbsp;vulnerability of the World Health Organization. The reliabilities of the non-structural and&nbsp;functional vulnerability instuments were 0.79 and 0.91, respectively, using the Cronbach &alpha;.&nbsp;The data were collected through observation and interview with authorities of centers and their&nbsp;staffs. The data analysis was performed through descriptive statistics and 1-sample t-test using&nbsp;SPSS 16.<br> <strong>Results:</strong> Among 17 rehabilitation centers, the mean functional safety of 11 centers (64.7%)&nbsp;was high and showed low vulnerability and safety of 6 centers (35.3%) was average and&nbsp;showed average vulnerability. With regard to non-structural safety level, 9 centers (53% of&nbsp;centers) had high safety level and showed low vulnerability. Eight centers (47% of centers) had<br> average safety level and showed average vulnerability. The results of 1-sample t test showed&nbsp;that at the significance level of 0.05, there was no significant difference between functional and&nbsp;non-structural safety of centers.<br> <strong>Conclusion: </strong>The functional and non-structural safety of state rehabilitation centers of Tehran&nbsp;welfare organization was above average and vulnerability of centers to disaster was average,&nbsp;too. We suggest that the required planning be performed to improve non-structural and&nbsp;functional safety quality of centers and reduce their vulnerability.</p> Rehabilitation centers, Nonstructural and functional vulnerability, Disaster 129 136 http://hdq.uswr.ac.ir/browse.php?a_code=A-10-25-4&slc_lang=fa&sid=1 Mohammad Ali Hosseini No Department of Rehab Management, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran. Golnush Mirzayi mirzaeegolnoush@yahoo.com Yes Department of Rehab Management, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran. Seyed Habibollah Kovari No Department of Rehab Management, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran. Hamid Reza Khankeh No Department of Nursing, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran. Saeed Hosseini Teshnizi No Clinical Research Development Center of Children Hospital, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.