Mycobacterium tuberculosis transmission in an ethnically-diverse high incidence region in England, 2007–11

BMC Infectious Diseases

Table 1 Characteristics of all 4845 cases notified in the West Midlands (2007–2011) and the study population

	All cases		Cases with genotype data		Cases without genotype data
	Number	%	Number	%	Number	%
Year notified
2007	938	19.4	524	20.6	414	18
2008	1015	21	502	19.7	513	22.3
2009	1009	20.8	536	21.1	473	20.5
2010	872	18	494	19.4	378	16.4
2011	1011	20.9	487	19.2	524	22.8
Sex
Male	2638	54.5	1414	56	1224	53
Female	2205	45.5	1127	44	1078	47
Age group (years)
0–14	286	5.9	62	2.4	224	9.7
15–44	2769	57.2	1617	63.6	1152	50
45–64	966	19.9	470	18.5	496	21.5
65 and over	824	17	394	15.5	430	18.7
Region of birth
UK	1555	34.8	754	31.7	801	38.3
Europe	101	2.3	57	2.4	44	2.1
East Mediterranean	45	1	27	1.1	18	0.9
Africa	700	15.7	417	17.5	283	13.5
Americas	57	1.3	30	1.3	27	1.3
South Asia	1912	42.8	1033	43.4	879	42
East/Southeast Asia	103	2.3	64	2.7	39	1.9
Ethnicity
White	880	18.8	412	16.8	468	21.1
Black-Caribbean	173	3.7	96	3.9	77	3.5
Black-African	711	15.2	406	16.5	305	13.7
Black-Other	18	0.4	12	0.5	6	0.3
South Asian	2602	55.6	1364	55.5	1238	55.7
Chinese	47	1	21	0.9	26	1.2
Mixed/Other	248	5.3	145	5.9	103	4.6
Years since entry to tuberculosis diagnosis
0–1	435	16.4	262	17.6	173	14.8
2–4	573	21.5	357	24	216	18.4
5–9	606	22.8	349	23.4	257	21.9
10 and over	1046	39.3	521	35	525	44.8
Disease site
Pulmonary, with or without extra-pulmonary	2632	55.1	1635	64.6	997	44.4
Extra-pulmonary only	2141	44.9	895	35.4	1246	55.6
History of or current problem drug use
No	2181	96.8	1126	96.1	1055	97.6
Yes	72	3.2	46	3.9	26	2.4
History of or current problem alcohol use
No	2138	97.3	1100	96.6	1038	98.1
Yes	59	2.7	39	3.4	20	1.9
History of or current homelessness
No	2201	98.1	1144	97.0	1057	99.2
Yes	43	1.9	35	3.0	8	0.8
History of or currently in prison
No	2084	97.1	1079	96	1005	98.3
Yes	62	2.9	45	4.0	17	1.7

ISSN: 1471-2334