Objective Health care providers are beginning to deliver patients a range of Internet-based services, however, it is not clear which of these e-health services patients need or desire. The authors propose that patients' acceptance of provider-delivered e-health can be modeled in advance of application development by measuring effects of several key antecedents to e-health use and applying models of acceptance developed in the information technology (IT) field.

Design The study tests three theoretical models of IT acceptance among patients who had recently registered for access to provider-delivered e-health.

Measurements An online questionnaire administered items measuring perceptual constructs from the IT acceptance models (intrinsic motivation, perceived ease of use, perceived usefulness-extrinsic motivation, and behavioral intention to use e-health) and five hypothesized antecedents (satisfaction with medical care, health knowledge, Internet dependence, information-seeking preference, and health care need). Responses were collected and stored in central database.

Results All tested IT acceptance models performed well in predicting patients' behavioral intention to use e-health. Antecedent factors of satisfaction with provider, information-seeking preference, and Internet dependence uniquely predicted constructs in the models.

Conclusion IT acceptance models provide a means to understand which aspects of e-health are valued by patients and how this may affect future use. In addition, antecedents to the models can be used to predict e-health acceptance in advance of system development.