The number of uninsured children in the state spiked 20 percent over the last year. Utah health insurance is covered one fifth fewer children last year than it did the year before. This spike of 20 percent in uninsured kids is a part of a nationwide reversal of the improvements seen over previous years, says a new report. Kids had been seeing an increase in their health insurance coverage every year for nearly a decade. That positive coverage trend has now changed directions when it comes to Utah health insurance…