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Kryger [21]
1 year ago
10

Breastfeeding and ovarian cancer risk: a systematic review and meta-analysis of 40 epidemiological studies

Medicine
1 answer:
jekas [21]1 year ago
4 0

Breastfeeding and ovarian cancer risk: a systematic review and meta-analysis of 40 epidemiological study shows that:

The present systematic review and meta-analysis was conducted to assess any association between breastfeeding and the risk of ovarian cancer.

A systematic search of published studies was performed in PUBMED and EMBASE and by reviewing reference lists from retrieved articles through March 2013.

Data extraction was conducted independently by two authors. Pooled relative risk ratios were calculated using random-effect models.

Total of 5 cohort studies and 35 case-control studies including 17,139 women with ovarian cancer showed a 30% reduced risk of ovarian cancer when comparing the women who had breastfed with those who had never breastfed (pooled RR = 0.70, 95% CI: 0.64-0.76; p = 0.00), with significant heterogeneity in the studies (p = 0.00; I2 = 76.29%).

A significant decreasd in risk of epithelial ovarian cancer was also observed (pooled RR = 0.68, 95% CI: 0.61-0.76).

When the participants were restricted to only parous women, there was a slightly attenuated but still significant risk reduction of ovarian cancer (pooled RR = 0.76, 95% CI: 0.69-0.83).

For total breastfeeding duration, the pooled RRs in the < 6 months, 6-12 months and > 12 months of breastfeeding subgroups were 0.85 (95% CI: 0.77-0.93), 0.73 (95% CI: 0.65-0.82) and 0.64 (95%CI: 0.56-0.73), respectively.

Meta-regression of total breastfeeding duration indicated an increasing linear trend of risk reduction of ovarian cancer with the increasing total breastfeeding duration (p = 0.00).

Breastfeeding was inversely associated with the risk of ovarian cancer, especially long-term breastfeeding duration that demonstrated a stronger protective effect.

To learn more about breast feeding: brainly.com/question/14029100

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