Parameter Age Body mass index Fasting blood sugar Glycosylated HB Duration of DM R p R p r p r p R p FEV1 -1 .000* -0.017 0.8 -.107 0.134 -.053 0.457 -.169 .017* FVC -1 .000* -2.00 .005* -.116 .103 .076 .286 -1.35 .058 PEFR -1 .000* -.026 .7 -0.41 .563 -0.67 .344 -.151 .034*

Table 3: The correlation Matrix showing relationship between age BMI, FBS, Glycosylated Hb and lung function.