Table 4.

Data from the fourth visit

Variable	Subgroups	Frequency	Percentage
Number of days since first treatment	Max. 2 wks	413	42
	2–4 wks	284	29
	4–6 wks	67	7
	6–8 wks	46	5
	More	33	3
	Unknown	141	14
Intensity of pain at 4th visit	No pain	414	42
	Mild	308	31
	Moderate	99	10
	Severe	22	2
	Unbearable	0	0
	Unknown	141	14
Global assessment of present status	Definitely better	652	66
	Not definitely better (i.e. probably better, unchanged, probably worse, definitely worse)	197	20
	Unknown	135	14