borderline significantp = 0.06
When comparing the median value at follow-up for IV (0.81 in the PRM group versus 1.01 in the placebo group) there was a borderline significant difference ( p = 0.06) with the lowest value (indicating the least diurnal rhythm fragmentation) in the melatonin group, but for RA there was no difference between intervention groups (0.83 in both groups).