The authors regret that the Cohn et al (2007) article was incorrectly categorized into hospital case-control in this study. It is now reproduced correctly at the text and Tables 1 and 2 correspondingly. The authors also corrected the term of DDE for their consistency as below.
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•The numbers of study in the Methods of the Abstract and the second paragraph in the Results section should be corrected as follows.
- 16 hospital-based case-control studies → 15 hospital-based case-control studies
- 10 nested case-control studies → 11 nested case-control (prospective) studies
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The design of Cohn (2007)'s study in Table 1 should be corrected to Nested CC.
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The results related to study design in Table 2 should be changed as follows.
| Studies included | No. of Studies | OR | 95% CI | Heterogeneity |
Egger's test (p for bias) | |
|---|---|---|---|---|---|---|
| p | I2 (%) | |||||
| Type of study design | ||||||
| Hospital CC | 15 | 1.01 | 0.89 to 1.13 | 0.171 | 25.7 | 0.994 |
| Population CC | 11 | 1.19 | 0.99 to 1.44 | 0.004 | 61.3 | 0.212 |
| Nested CC | 11 | 0.92 | 0.83 to 1.03 | 0.377 | 7.0 | 0.160 |
| : | : | : | : | : | : | : |
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All the terms of “exposure to DDE” in the text should be corrected to “exposure to DDT”.