Table 1.

Classification of patient case report forms according to time of return after start of treatment

	Form to be processed as
Completed after 2-week assessment and less than 4·5 months after start of treatment	3-month assessment
Completed 4·5–7·5 months after start of treatment	6-month assessment
Completed 7·5–10·5 months after start of treatment	9-month assessment
Completed 10·5–14 months after start of treatment	12-month assessment
Completed more than 14 months after start of treatment	Exclude forms