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. 2013 Oct 25;8(10):e78803. doi: 10.1371/journal.pone.0078803

Table 1. Sample Characteristics.

Variable Total (n, %)
Age
(<40 years) 480 (27.5%)
(40-50 years) 978 (56%)
(>50 years) 280 (16%)
Missing 5 (<0.5%)
Ethnicity
Black (n,%) 1,464 (84%)
White, Indian, or Coloured (n,%) 279 (16%)
Education
<12 yrs (n=637) (n,%) 637 (36.5%)
12+ yrs (n=1,042) (n,%) 1,042 (60%)
Missing 64 (<0.5%)
Social Class Distribution
First Quintile (Lowest) 306 (17.5%)
Second Quintile 372 (21%)
Third Quintile 630 (36%)
Fourth Quintile 184 (10.5%)
Fifth Quintile 200 (11.5%)
Sixth Quintile (Highest) 22 (1%)
Missing 29 (1.5%)
Psychological Distress
None 1,045 (60%)
GHQ-28≥5 698 (40%)