The ability to access health and medical information have implications for prognosis and quality of life. This study investigated the current communication environment and health literacy in chronic hemodialysis (HD) patients and their associations with patients' physical condition and clinical findings. This was a cross-sectional, single-arm, multicenter exploratory study. Data were collected from 211 patients (64 males) undergoing chronic HD at five facilities. This included a survey of communication environments, health literacy, dialysis management information, and clinical findings. Among the participants, 145 (68.7%) reported using the Internet. They primarily collected health-related as well as everyday life information through the Internet. Health literacy fell within the problematic range. In terms of e-Health literacy, "understanding" and "easy" showed a positive trend, while "accessing," "appraising," and "applying" were perceived as "difficult." Three groups were identified based on Internet usage: good communication environment (CE) group (134 participants), poor-CE group (56 participants), and a group that did not respond (21 participants). Grip strength, serum albumin level, and "information acquisition" were significantly lower in the poor-CE group. Health literacy increases as the duration of dialysis extends, and decreases with advancing age. Patients who used the Internet gained a wide range of information, including health-related information, for their daily lives. The use of ICT is lower among patients with decreased physical activity, and further investigation is desired into how actively encouraging these patients to collect health information via the Internet can enhance their health literacy.
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