Final answer:
CHINs failed in the 1990s due to a lack of focus on community stakeholders and privacy concerns among patients.
Step-by-step explanation:
The failure of CHINs in the 1990s can be attributed to various factors. While technology was available during that time, a lack of focus on community stakeholders resulted in competitors being unable to agree on key issues, leading to a lack of coordination and cooperation among participants. Additionally, privacy concerns among patients led to a grassroots political movement against the sharing of protected health information. These factors, along with other challenges like the complexity of the proposed initiatives and opposition from interest groups, ultimately contributed to the failure of CHINs.