Insulin autoantibody 0.57% is generally normal and is a negative result, the reference value range may vary slightly from hospital to hospital. Insulin autoantibodies (IAA) are autoimmune antibodies produced by the human body against its own pancreatic β-cells, and are one of the markers of type 1 diabetes, which can be found in both subclinical and clinical stages of type 1 diabetes.IAA test results are generally expressed as a percentage, with <5% being negative, 5% to 7% being suspicious, and >7% being positive. IAA correlates well with patient age, with a relatively high detection rate in children and a lower rate in adult patients. Insulin autoantibodies are 0.57%, it is recommended to seek medical advice, please consult your doctor for test results.