From: Agricultural chemical exposures and birth defects in the Eastern Cape Province, South Africa A case – control study
Education
Cases
Controls
Nr
%
No schooling
7
7.9
8
4.5
STD 1 – 3
11
12.4
20
11.2
STD 4 – 6
23
25.8
STD 7 – 8
16
18.0
54
30.1
STD 9 up to Matric
21
23.6
63
35.4
Tertiary
6
6.7
10
5.6