Table 2

Categories of PCIs according to PCNE V5.01 classification
No. Primary domain Code Sub-classes Frequency (%)
1 Adverse drug reactions P1.1 Hypoglycaemia 19 (2.7)
Gastrointestinal disturbances 19 (2.7)
Cough 13 (1.8)
Muscle ache and cramps 10 (1.4)
Dizziness 5 (0.7)
Others 44 (6.2)
Subtotal 110 (15.6)
2 Drug choice problems P2.1 Inappropriate drug 6 (0.8)
P2.3 Inappropriate duplication 5 (0.7)
P2.4 Contraindication 1 (0.1)
P2.5 No clear indication for drug 10 (1.4)
P2.6 No drug prescribed but clear indication 41 (5.8)
P2.7 Inadequate regimen 3 (0.4)
P2.8 Drug not required 1 (0.1)
Subtotal 67 (9.5)
3 Dosing problem P3.1 Dose too low or frequency not enough 10 (1.4)
P3.2 Dose too high or frequency too often 10 (1.4)
P3.3 Duration of treatment too short 1 (0.1)
P3.4 Duration of treatment too long 1 (0.1)
P3.5 Inappropriate dosing 2 ((0.3)
Subtotal 24 (3.4)
4 Drug use problems P4.1 Drug not taken or administered at all 20 (2.8)
P4.3 Incorrect administration 69 (9.8)
P4.4 Non-adherence to medication 146 (20.7)
Subtotal 235 (33.3)
5 Drug interaction P5.1 Potential interaction 4 (0.5)
6 Others P6.2 Insufficient awareness/knowledge 144 (20.1)
P6.3 Unclear complaints 82 (11.6)
P6.4 Therapy failure 98 (13.9)
P6.5 Worries about complications/ADRs 15 (2.1)
P6.6 Dispensing issues 11 (1.6)
P6.7 Lifestyle modifications 8 (1.1)
P6.8 Monitoring for side effects 3 (0.4)
P6.9 Technical issues 2 (0.3)
TOTAL 706 (100)

*Subclasses added, not in The PCNE Classification V 5.01.

Chua et al.

Chua et al. BMC Health Services Research 2012 12:388   doi:10.1186/1472-6963-12-388

Open Data