How many people didn't see that it was 1-specificity and picked E like me :(
The P-value is basically type 1 error, and they keep the p-value the same (at <.05) in both versions of the experiments. By increasing number of patients in the group, they increase power of the study, which reduces type II error.
Here's a way for me to remember: Y. enteroCOLDitica. Hope it helps.