Kerala has emerged as the top ranking state in the second health index launched by NITI Aayog, while Uttar Pradesh is the worst, reported PTI. The health index is a composite measure of States and Union Territories based on 23 health indicators with major weightage to the outcomes. The second round of the health index accounts for the period 2015-16 (base year) to 2017-18 (reference year). Andhra Pradesh and Maharashtra emerged as the second and third best in terms of overall health performance respectively, according to a report titled ‘Healthy States, Progressive India: Report on Rank of States and UTs’.