Skip to main content

Table 7 Ratings for the certainty of the evidence

From: Sex difference of pre- and post-natal exposure to six developmental neurotoxicants on intellectual abilities: a systematic review and meta-analysis of human studies

 

Boys

Girls

Outcomes

Prenatal General

Prenatal Nonverbal

Prenatal Verbal

Postnatal Lead

Prenatal General

Prenatal Nonverbal

Prenatal Verbal

Postnatal Lead

Initial Rate of Confidence

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Downgrading Factors

 Risk of Bias

0

0

-1

-2

0

0

0

-2

 Inconsistency

0

0

0

-1

-1

0

0

-1

 Indirectness

0

0

0

0

0

0

0

0

 Imprecision

0

0

0

0

0

0

0

0

 Publication Bias

-1

-1

-2

-1

-1

-1

-2

-2

Upgrading Factors

 Large Magnitude

0

0

0

0

0

0

0

0

 Dose Response

0

0

0

0

0

0

0

0

 Residual Confounding

0

0

0

0

0

0

0

0

Overall

 Quality

Moderate

Moderate

Low

Low

Low

Moderate

Moderate

Low

 Strength

Limited Evidence of Toxicity

Limited Evidence of Toxicity

Inadequate Evidence of Toxicity

Inadequate Evidence of Toxicity

Inadequate Evidence of Toxicity

Insufficient Evidence of toxicity

Inadequate Evidence of Toxicity

Inadequate Evidence of Toxicity