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Table 1 Comparison of socio-demographic characteristics in children from urban area of Kinshasa −2004, 2008 and 2011

From: Blood lead levels in children after phase-out of leaded gasoline in Kinshasa, the capital of Democratic Republic of Congo (DRC)

 

2004

2008

2011

N

100

55

100

Age (Mean ± SD) a,b

3.2 ± 1.6

2.8 ± 1.3

2.9 ± 1.6

Sex c

Boys, n (%)

55 (55%)

26 (47%)

64 (64%)

 

Girls, n (%)

45 (45%)

29 (53%)

36 (36%)

  1. a Arithmetic mean ± Standard deviation.
  2. b Anova three -sample Fischer test, p = 0.87.
  3. c Chi-square test: (2004 vs 2008, p = 0.34) (2004 vs 2011, p = 1.68) (2008 vs 2011, p = 0.045).