Table 3
Statistical comparison of labour analgesia rates between period A and B
Labour analgesia
Period A
Period B
Mean (%)
9.3707
17.0981
Median (%)
9.3700
16.47
Variance (%)
15.1226
34.4926
Standard deviation (%)
3.8887
5.873
Observations
31
31
T-test
P<0.01