INS and diabetes mellitus: 22.2% (n = 10) treated with insulin, 51.1%(n = 23) treated with oral hypoglycaemic agents, and 26.7%(n = 12) was on lifestyle intervention in DM/–DPN group; 37.8% (n = 17) treated with insulin, 51.1% (n = 23) treated with oral hypoglycaemic agents, and 11.1% (n = 12) was on lifestyle intervention in DM/DPN group.