! Higgins,J.E. & Koch,G.G. (1977) "Variable selection and generalized
!chi-square analysis of categorical data applied to a large cross-sectional
!occupational health survey." Inter. Stat. Rev 45: 51-62
! Aitkin, M. et al (1989) Statistical Modelling in GLIM. OUP p.348-9
! Herzberg & Andrews, Data, pp.209-210

!   No. of cotton workers suffering from byssinosis



yes	no	race	sex	smoke	employment	dust
3	37	White	Male	Yes	<10years	high
25	139	Other	Male	Yes	<10years	high
0	5	White	Female	Yes	<10years	high
2	22	Other	Female	Yes	<10years	high
0	16	White	Male	No	<10years	high
6	75	Other	Male	No	<10years	high
0	4	White	Female	No	<10years	high
1	24	Other	Female	No	<10years	high
8	21	White	Male	Yes	10-20years	high
8	30	Other	Male	Yes	10-20years	high
0	0	White	Female	Yes	10-20years	high
0	0	Other	Female	Yes	10-20years	high
2	8	White	Male	No	10-20years	high
1	9	Other	Male	No	10-20years	high
0	0	White	Female	No	10-20years	high
0	0	Other	Female	No	10-20years	high
31	77	White	Male	Yes	>20years	high
10	31	Other	Male	Yes	>20years	high
0	1	White	Female	Yes	>20years	high
0	1	Other	Female	Yes	>20years	high
5	47	White	Male	No	>20years	high
3	15	Other	Male	No	>20years	high
0	2	White	Female	No	>20years	high
0	0	Other	Female	No	>20years	high
0	74	White	Male	Yes	<10years	medium
0	88	Other	Male	Yes	<10years	medium
1	93	White	Female	Yes	<10years	medium
2	145	Other	Female	Yes	<10years	medium
0	35	White	Male	No	<10years	medium
1	47	Other	Male	No	<10years	medium
1	54	White	Female	No	<10years	medium
3	142	Other	Female	No	<10years	medium
1	50	White	Male	Yes	10-20years	medium
0	5	Other	Male	Yes	10-20years	medium
1	33	White	Female	Yes	10-20years	medium
0	4	Other	Female	Yes	10-20years	medium
1	16	White	Male	No	10-20years	medium
0	0	Other	Male	No	10-20years	medium
0	30	White	Female	No	10-20years	medium
0	4	Other	Female	No	10-20years	medium
1	141	White	Male	Yes	>20years	medium
0	1	Other	Male	Yes	>20years	medium
3	91	White	Female	Yes	>20years	medium
0	0	Other	Female	Yes	>20years	medium
0	39	White	Male	No	>20years	medium
0	1	Other	Male	No	>20years	medium
3	187	White	Female	No	>20years	medium
0	2	Other	Female	No	>20years	medium
2	258	White	Male	Yes	<10years	low
3	242	Other	Male	Yes	<10years	low
3	180	White	Female	Yes	<10years	low
3	260	Other	Female	Yes	<10years	low
0	134	White	Male	No	<10years	low
1	122	Other	Male	No	<10years	low
2	169	White	Female	No	<10years	low
4	301	Other	Female	No	<10years	low
1	187	White	Male	Yes	10-20years	low
0	33	Other	Male	Yes	10-20years	low
2	94	White	Female	Yes	10-20years	low
0	3	Other	Female	Yes	10-20years	low
0	58	White	Male	No	10-20years	low
0	7	Other	Male	No	10-20years	low
1	90	White	Female	No	10-20years	low
0	4	Other	Female	No	10-20years	low
12	495	White	Male	Yes	>20years	low
0	45	Other	Male	Yes	>20years	low
3	176	White	Female	Yes	>20years	low
0	2	Other	Female	Yes	>20years	low
3	182	White	Male	No	>20years	low
0	23	Other	Male	No	>20years	low
2	340	White	Female	No	>20years	low
0	3	Other	Female	No	>20years	low