Table 6.

Determinants of prescription modifications of prescription only medicines (POM) in Dutch community pharmacies.

Prescription characteristic	Cases (n = 1802, 100%)	Controls (n = 2377, 100%)	OR[95% CI]	Reference
Patient related
Female	1080 (60.3%)	1490 (62.8%)	0.90 [0.80,1.02]	Male
Age: < 40 years	596 (33.2%)	702 (29.6%)	1.00	Age: < 40 years.
Age: 40–65 years	594 (33.1%)	943 (39.7%)	0.74 [0.64,0.86]	Age: < 40 years.
Age: > 65 years	606 (33.7%)	730 (30.7%)	0.98 [0.84,1.14]	Age: < 40 years.
Drug related
ATC-code N	311 (17.3%)	539 (22.7%)	0.71 [0.61,0.83]	All but N
ATC-code R	252 (14.0%)	235 (9.9%)	1.48 [1.23,1.79]	All but R
ATC-code A	227 (12.6%)	258 (10.9%)	1.18 [0.98,1.43]	All but A
ATC-code C	216 (12.0%)	309 (13.0%)	0.91 [0.76,1.10]	All but C
First dispensing	598 (33.6%)	796 (33.6%)	1.00 [0.88,1.14].	Refill prescription
Prescriber related
Non printed prescription	1070 (59.4%)	730 (30.7%)	3.30 [2.90,3.75]	Printed prescription
Specialist prescription	494 (27.5%)	418 (17.6%)	1.82 [1.57,2.11]	Own GP prescription
Other GP prescription	55 (3.1%)	57 (2.4%)	1.49 [1.02,2.17]	Own GP prescription
Other prescriber prescription	24 (1.3%)	19 (0.8%)	1.95 [1.06,3.57]	Own GP prescription
GP without computer link to pharmacy	1620 (89.9%)	2012 (84.6%)	1.61 [1.33,1.94]	GP with computer link to pharmacy