I suggest you consult with an attorney who practices DUI defense in your state. Depending on the prioribility statues in force, you may be looking at a first offense. However, if there is a greater prioribility time period, a prior may be charged. In any event, courts can sometimes consider old priors even if they cannot be charged. Schedule a consultation for accurate advice.
In Ohio there are two separate look back periods: one is a 6 year look back and the other is a 20 year look back period. The six year look back period enhances the penalties for each subsequent ovi up to the 4th ovi which becomes a felony. The 20 year look back period punishes as a felony an ovi with 5 or more prior convictions for ovi.
You will be charged with a first offense either low tier or high tier ovi. If this is a case in which you refused a chemical test (breath or otherwise) then you may be charged with a ovi refusal with prior ovi within 20 years.
You need to seek an attorney to review your citations in order to fully understand the nature of your charges.