A meta-analysis of depression during pregnancy and the risk of preterm birth, low birth weight, and intrauterine…
Untreated depression in pregnancy is linked to higher rates of preterm birth — how will treating mine be factored into how closely you monitor this pregnancy?
Well-supported by good-quality research. how we score evidence
Caveat on this rating: The effect size depends heavily on how depression was measured, and the authors applied trim-and-fill because of publication bias. These are observational associations: depression clusters with poverty, poor nutrition, smoking, and limited prenatal care, and the pooled estimates cannot fully separate those.
Pooling 29 prospective studies, women who met a categorical threshold for depression during pregnancy had about a 39% higher risk of preterm birth (RR 1.39, 95% CI 1.19-1.61) and a 49% higher risk of low birth weight (RR 1.49, 95% CI 1.25-1.77). Studies that treated depression as a continuous score found almost no effect (RR 1.03 and 1.04), and the low-birth-weight risk was much larger in developing countries (RR 2.05) than in the US (RR 1.10) — this is about clinically significant depression in context, not about ordinary low mood.
Worth asking
Untreated depression in pregnancy is linked to higher rates of preterm birth — how will treating mine be factored into how closely you monitor this pregnancy?
What to watch for
Evidence quality tells you whether to trust the finding — not whether the treatment is safe. These are the risks this research reports.
- Fertility & pregnancy risk
Source
A meta-analysis of depression during pregnancy and the risk of preterm birth, low birth weight, and intrauterine growth restriction. — Grote NK, Bridge JA, Gavin AR, Melville JL, Iyengar S, Katon WJ. (2010)
Top-tier peer-reviewed journal
Read the source: https://doi.org/10.1001/archgenpsychiatry.2010.111
DOI: 10.1001/archgenpsychiatry.2010.111
How this was scored
- Study design
- Systematic review of observational studies
- Funding
- Independently funded
- Published in
- Top-tier peer-reviewed journal
- Sample size
- not recorded
- Preregistered
- No
- Conflicts disclosed
- No
- Independent of proponent
- Yes
- Retracted
- No
Read the full scoring rubric, including what it can't tell you.
Published August 19, 2026.
Where we put this study in context
Questions
How strong is the evidence behind this?
Resolv rates this source "strong evidence". Well-supported by good-quality research. It scores 72 out of 100 on our published rubric. One caveat travels with that badge: The effect size depends heavily on how depression was measured, and the authors applied trim-and-fill because of publication bias. These are observational associations: depression clusters with poverty, poor nutrition, smoking, and limited prenatal care, and the pooled estimates cannot fully separate those. The score is calculated from recorded facts about the source — study design, funding, publication venue, sample size, preregistration — not typed in by an editor.
What is the source for this?
A meta-analysis of depression during pregnancy and the risk of preterm birth, low birth weight, and intrauterine growth restriction. — Grote NK, Bridge JA, Gavin AR, Melville JL, Iyengar S, Katon WJ. (2010). Published in: Top-tier peer-reviewed journal. DOI: 10.1001/archgenpsychiatry.2010.111. The full source is linked on this page so you can read it yourself.
Who paid for this research, and does that matter?
Study design: Systematic review of observational studies. Funding: Independently funded. The researchers were independent of whoever benefits from the result. Industry sponsorship is one of the most reliably measured biases in medicine, which is why funding carries real weight in the score rather than sitting in a footnote.
Is this medical advice?
This is information to bring to your prescriber, not medical advice and not a reason to change anything on your own. Nothing here is an instruction to stop or reduce a medication. If you are in crisis, call or text 988.
This is information to bring to your prescriber, not medical advice and not a reason to change anything on your own. Nothing here is an instruction to stop or reduce a medication. If you are in crisis, call or text 988.