Table 2.

Weighting of variables

		Weighting
GEN	Male	1
	Female	0
LEN	>2 years	1
	0,5-2 years	0,5
	<0,5 y	0
DPW	3	0
	4-5	0,5
	6-7	1
TAS	always	1
	often	0,67
	seldom	0,33
	never	0
VAR	always	1
	often	0,67
	seldom	0,33
	never	0
ALT	yes	1
	dont know	0,5
	no	0
OTH	yes	1
	no	0
SAT	always	1
	often	0,67
	seldom	0,33
	never	0
DEL	yes	1
	to late	0,5
	too early	0
SIZ	suitable	1
	too large	0,5
	too small	0
HEL	yes	1
	no	0