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Table 3 Factors associated with composite TB knowledge score

From: Predictors of knowledge about tuberculosis: results from SANHANES I, a national, cross-sectional household survey in South Africa

Background characteristics Composite TB Knowledge score
Simple regression Multiple regression
Unstandardized co–eff (β) s.e. p-value Unstandardized co-eff (β) s.e. p-value
Age (years)       
 18 to 24       
 25 to 34 0.044 0.071 0.539 −0.01 0.066 0.875
 35 to 44 0.017 0.075 0.825 −0.055 0.077 0.475
 45 to 54 −0.05 0.07 0.476 −0.084 0.072 0.245
 55 to 64 −0.094 0.089 0.292 0.027 0.087 0.756
Sex: Male vs Female −0.074 0.043 0.084 −0.101* 0.044 0.022
Race       
 African ref - -    
 White 0.201 0.131 0.127 −0.021 0.125 0.867
 Coloured 0.246*** 0.064 <0.001 0.245*** 0.067 <0.001
 Indian 0.13 0.151 0.388 0.047 0.119 0.69
Urban vs Rural 0.236** 0.075 0.002 0.069 0.073 0.345
Completion of high school/equivalent       
 Did not complete high school ref - -    
 Completed high school (attained Gr12 or higher) 0.369*** 0.066 <0.001 0.249*** 0.061 <0.001
Employed vs Unemployed 0.25*** 0.053 <0.001 0.224** 0.079 0.005
Annual Income       
No income ref - -    
 <= R 9 600 0.051 0.085 0.545 0.004 0.086 0.961
 R 9 601 - R 38 400 −0.087 0.078 0.265 −0.193 0.098 0.05
 > = R 38 401 0.346*** 0.076 <0.001 0.058 0.122 0.637
Ever diagnosed with TB 0.213* 0.094 0.023 0.364*** 0.089 <0.001
Source of Knowledge: Where did you first learn about TB?       
 Newspapers and magazines 0.021 0.082 0.803    
 Radio 0.193** 0.066 0.004 0.14 0.072 0.052
 Television 0.327*** 0.061 <0.001 0.28*** 0.066 <0.001
 Brochures, pamphlets, other printed materials 0.367** 0.112 0.001 0.261* 0.115 0.023
 Health Workers 0.299*** 0.054 <0.001 0.366*** 0.049 <0.001
 Family, friends, neighbours, colleagues −0.124 0.093 0.184    
 Teachers 0.338*** 0.069 <0.001 0.37*** 0.072 <0.001
 Other sources of information −0.119 0.089 0.182    
 (constant)     3.42*** 0.089 <0.001
  1. *p < 0.05, **p < 0.01, ***p < 0.001
  2. F(20,423) = 11.11, p < 0.0001
  3. R-squared = 0.0915