WASHINGTON (AP) — The Senate Republican health care bill would guarantee immediate assistance for insurance markets that are struggling in many states. Yet overall it would do the same thing as its House counterpart: less federal money for health insurance and a greater likelihood that more Americans will be uninsured.

The bill's impact on personal health care costs would be uneven: Premiums would likely go down for younger people, but older people would pay more. Out-of-pocket costs to cover insurance deductibles and co-payments would go up.

For those who believe the government is too involve...