[arkj]

> At the end of the study, the data on 89 subjects (44 in intervention group and 45 people in placebo group) were examined.

And in the conclusion they add

> Based on the results of the present study, at the end of the study sleep score (PSQI) reduced significantly in vitamin recipients as compared with placebo recipients (P < 0.05). This difference was significant even after modifying confounding variables (P < 0.05).

It’s 44 vs 45 why don’t they use the simple language they started with. It would have been great if they also said how many people felt better by placebo alone.