Table 2. Socio-economic characteristics.

	TSCI		NTSCI		Total		P Values
Employment Status	n= 84	%	n = 101	%	n = 185	%	P = 0.015
Yes	33	39%	30	30%	63	34%
No	14	17%	36	36%	50	27%
Unknown	37	44%	35	35%	72	39%
Type of Employment	n = 32	%	n = 29	%	n = 61	%	P = 0.064
Full-time	23		21		44	72%
Part-time	4		2		6	10%
Temporary	3		1		4	7%
Self-Employed	2		5		7	11%
Type of Industry	n = 27	%	n = 25	%	n = 52	%	P= 0.371
Mining	0	0%	1	4%	1	2%
Manufacturing	2	7%	2	8%	4	8%
Construction	5	19%	2	8%	7	13%
Trade	2	7%	5	20%	7	13%
Transport	8	30%	4	16%	12	23%
Services	8	30%	8	32%	16	31%
Community Services	2	7%	3	12%	5	10%
Type of Occupation	n = 28	%	n = 26	%	n = 54		P = 0.629
Security officer	2	7%	1	4%	3	6%
Laborer	17	61%	15	58%	32	59%
Miner	0	0%	1	4%	1	2%
Driver	5	18%	4	15%	9	17%
Professional	4	14%	5	19%	9	17%
Education	n = 26	%	n = 33	%	n = 59		P = 0.442
Primary	0	0%	3	9%	3	5%
Secondary	6	23%	7	21%	13	22%
Matric	16	62%	20	61%	36	61%
College	1	4%	0	0%	1	2%
University or Technicon	3	12%	3	9%	6	10%