Table 2.

Mean TB knowledge score by demographic characteristics, TB diagnosis and first source of information on TB

	Total knowledge score
	Mean	95 % CI	n
Total	4.07	[3.99–4.14]	5945
Age
18 to 24	4.07	[3.95–4.19]	1168
25 to 34	4.11	[4.01–4.22]	1405
35 to 44	4.09	[3.98–4.19]	1283
45 to 54	4.02	[3.89–4.15]	1218
55 to 64	3.98	[3.83–4.12]	871
Sex
Female	4.10	[4.02–4.18]	3509
Male	4.03	[3.93–4.12]	2436
Race
African	4.02	[3.93–4.10]	3824
White	4.22	[3.97–4.47]	312
Coloured	4.26	[4.16–4.36]	1394
Indian	4.15	[3.86–4.43]	415
Urban/Rural
Rural	3.91	[3.79–4.02]	1850
Urban	4.14	[4.05–4.24]	4095
Completion of high school/equivalent
Did not complete high school	3.91	[3.82–3.99]	3774
Completed high school (attained Gr12 or higher)	4.28	[4.17–4.39]	2171
Employment Status
Unemployed	3.94	[3.85–4.03]	3183
Employed	4.19	[4.10–4.28]	2762
Annual income
No income	4.00	[3.88–4.12]	2118
1–9600	4.05	[3.90–4.20]	682
9601–38400	3.91	[3.80–4.02]	1896
>–38401	4.35	[4.24–4.45]	1249
Have you ever been diagnosed with TB
No	4.05	[3.98–4.13]	5487
Yes	4.27	[4.09–4.44]	458
Source of Knowledge: Where did you first learn about TB?
Newspapers and magazines
No	4.06	[3.98–4.14]	4568
Yes	4.08	[3.94–4.23]	1377
Radio
No	3.97	[3.88–4.07]	3096
Yes	4.16	[4.06–4.27]	2849
Television
No	3.92	[3.82–4.01]	3357
Yes	4.24	[4.15–4.34]	2588
Brochures, pamphlets or other printed materials
No	4.03	[3.96–4.11]	5450
Yes	4.40	[4.20–4.60]	495
Health workers
No	3.95	[3.86–4.05]	3710
Yes	4.25	[4.17–4.33]	2235
Family, friends, neighbours, colleagues
No	4.09	[4.01–4.17]	4855
Yes	3.96	[3.80–4.13]	1090
Teachers
No	3.99	[3.90–4.07]	4437
Yes	4.32	[4.21–4.44]	1508
Other sources of information
No	4.08	[4.00–4.15]	5288
Yes	3.96	[3.78–4.14]	657