Inadequate tetanus protection among the rural elderly.

Three cases of tetanus occurring in a community in southern West Virginia in five years prompted a survey of the immunization status of the population of this region. An immunization history was obtained from 540 consecutive patients seen at three different health care facilities. Of these, 386 (71.5%) had received prior tetanus protection, 65 (12%) had never been immunized, and 89 (16.5%) were uncertain or had received incomplete immunization. Of the 65 nonimmunized patients, 54 (83%) were older than 50 and only 11 (17%) were younger. Compared to the total group sampled, significantly more nonimmunized patients (both male and female) were older than 50 (P less than .001). Also, significantly more of these never immunized individuals lived in rural areas (P less than .001). In a group of 222 patients identified as being at increased risk of having tetanus, 65 (29%) had never been immunized, 89 (40%) were of uncertain or incomplete status, and 68 (30.5%) had been immunized more than ten years previously. One hundred twenty (54%) high-risk patients were older than 50 and 103 (46%) were younger. Compared to the entire population sampled, high-risk patients included significantly more who were older than 50 (P less than .001). Also, significantly more high-risk patients lived in rural areas (P less than .007). When treating injured patients, it is important to recall that many older adults living in rural areas are not adequately immunized against tetanus. Such patients should receive human tetanus immunoglobulin, as well as tetanus toxoid.