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Table 2 Characteristics of participants in the random split sub-samples A (n = 224) and B (n = 233); depicts the demographic characteristics, and the AIDS- related knowledge and stigma scale statistics for sub-samples A and B

From: Validating survey measurement scales for AIDS-related knowledge and stigma among construction workers in South Africa

Characteristics Sample Sub-sample A Sub-sample B
(n = 457) (n = 224) (n = 233)
n % n % n %
Demographic characteristics       
 Age in yearsc M = 36.09 SD = 10.95 M = 37.09 SD = 11.11 M = 35.16 SD = 10.74
 Genderb       
  Male 414 91 197 89 217 93
  Female 40 9 24 11 16 7
 Race/ethnicityb       
  ‘Others’ 185 41 91 41 94 41
  ‘Black’ African’ 270 59 132 59 138 59
 Level of educationa       
  Primary or less 121 26 65 29 56 24
  Secondary 245 54 110 49 135 59
  Tertiary or higher 91 20 49 22 42 18
 Nature of employmenta,d       
  Permanent 271 61 146 68 125 55
  Temporary/Contract 152 34 65 30 87 38
  Casual 21 5 5 2 16 7
 Languagea       
  English 197 43 92 41 105 45
  Afrikaans 67 15 35 16 32 14
  isiXhosa 193 42 97 43 96 41
HIV/AIDS-related characteristics       
 Tested for HIVb 339 74 167 75 172 74
 HIV + b 31 10 14 9 17 10
Behavioural characteristics       
AIDS-related knowledge c Mean SD Mean SD Mean SD
Knowledge score (Range 0–11) 7.93 2.85 7.96 2.96 7.90 2.76
AIDS-related stigma c Mean SD Mean SD Mean SD
Stigma score (Range 0–9) 1.69 1.80 1.70 1.86 1.68 1.74
  1. Notes: aThe Chi-square test for independence or the bFisher’s Exact Test was used for categorical variables, and the cIndependent Samples ‘t’ Test was used for continuous variables. dNo differences were found between sub-sample characteristics and means, except for nature of employment; with sub-sample A containing a higher proportion of permanent workers than did sub-sample B