9-1-1 implementation: implications for poison center access.

House Bill 3178, passed by the 1981 Oregon Legislature, requires state-wide participation in a 9-1-1 emergency telephone system by 1991. It further requires deletion of all emergency telephone numbers other than 9-1-1 from the front cover of all telephone directories. The gradual implementation of 9-1-1 provided a unique opportunity to study telephone access to the poison center. The impact of 9-1-1 implementation was assessed, in a two-month survey of calls from the general public, to determine awareness of 9-1-1 availability and the source used to gain access to the poison center. Results showed that most callers (72%) had access to and were aware of 9-1-1. Callers obtained the poison center number from the telephone directories (28%), health care providers (19%), poison symbols supplied by the poison center (15%), directory assistance (9%), or other sources. Only 3% of the callers were referred from 9-1-1. State-wide implementation of 9-1-1 will have a major impact on the public's access to the poison center. The results of this study will be used to develop strategies for cooperation with 9-1-1 agencies.