Group Number of subjects Gender Age range
(years)
Mean age
±  SD
Male Female
No. % No. %
GroupI 45 20 44.4 25 55.6 50 to 60 51.9 ± 5.3
Group II 43 15 34.9 28 65.1 50 to 60 50.4 ± 5.9
Group III 46 31 67.4 15 32.6 50 to 60 50.5 ± 6.3
Table 2: Gender, age range and mean age of the subjects.