Treatment groups
Variable
pre op
post op
p-value
patients
n=91
n=150
age*
56.5 ± 13
56.9 ± 15.8
p=0.8397
Sex distribution*
54 m/37 f
60 m /90 f
p=0.0037
Hospital follow up time*
3.7 ± 2.1 weeks
3.0 ± 1.2 weeks
p=0.2572
*given as mean ± SD
Table 1:
Demographics of the two treatment groups; there is a statistical significant difference in sex distribution, but clinically this difference is negligible.