Table 3. Mean age of patients undergoing each type of surgery.

Type	Male	Female	P-value*	Total
UT	46.25	45.30	.000	45.47
TT	47.61	48.28	.000	48.17
SND	47.56	48.10	.000	48.01
MRND	46.54	46.88	.308	46.81
RND	47.20	47.69	.326	47.60
BND	46.94	48.54	.000	48.28
SUM	47.36	47.92	.000	47.83

*P-value of independent T-test between male and female patients.