Table 3.

Correlation between adherence measures, rho correlation coefficients

Measure	VAS	3DR	PR	RS
overallMEMS	0.30	0.16	0.01	0.25
timedMEMS	0.32a	0.19	0.12	0.18
VAS	–	0.49a	−0.04	0.54a
3DR	0.49a	–	0.11	0.08
PR	−0.04	0.11	–	0.01
RS	0.54a	0.08	0.01	–

MEMS Medication event monitoring system, VAS Visual analogue scale, 3DR 3-Day recall, PR Pharmacy refill, RS Measure of returned syrup

^a P < 0.05