Table 6

Case study 4: experimental group process evaluation

Patient clinical procedures (P)	Eligible patients (a)	Exposed patients (b)	Exposure rate (c)	Implementation index (e)
1. Baseline form	77	77	100%	1.00
2. Baseline cotinine	77	77	100%	1.00
3. Patient education 1	77	77	100%	1.00
4. Patient education 2	77	69	90%	0.90
5. Telephone counselling 1	59^6-150	42	71%	0.71
6. Telephone counselling 2	59^6-150	41	70%	0.70
7. Telephone counselling 3	59^6-150	39	66%	0.66
8. Telephone counselling 4	59^6-150	37	63%	0.63
9. Follow up form	77	71	92%	0.92
10. Follow up cotinine	77	70	91%	0.91

↵6-150 18 patients had low intentions and/or had no telephone.
PII = (1.00 + 1.00 + 1.00 + 0.90 + 0.71 + 0.70 + 0.66 + 0.63 + 0.92 + 0.91) ÷ 10 = 0.84.