Evidence map›Paper›PMID 8000495›Full record

ArticleOccupational and environmental medicine1994

Time to pregnancy and occupational exposure to pesticides in fruit growers in The Netherlands.

J de Cock, K Westveer, D Heederik, E te Velde, R van Kooij

Open access · bronzeAbstract read
In one paragraph

Article in Occupational and environmental medicine, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
8.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Time-to-pregnancy and risk of schizophrenia.Schizophrenia research · 2010
    Article
  9. Article
  10. Article
  11. Review
  12. Time to first pregnancy among women working in agricultural production.International archives of occupational and environmental health · 2005
    Article
  13. Exposure to pesticides and heavy work in greenhouses during pregnancy: does it effect birth weight?International archives of occupational and environmental health · 2005
    Article
  14. Article
  15. Spontaneous abortion in spouses of greenhouse workers exposed to pesticides.Environmental health and preventive medicine · 2003
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

J de CockDepartment of Epidemiology and Public Health, Wageningen Agricultural University, The Netherlands.
K Westveer
D Heederik
E te Velde
R van Kooij
Graduate School Experimental Plant Sciences · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAlthough pesticides are regularly used in agriculture, relatively little is known about possible adverse health effects, especially reproductive effects, due to occupational exposure. This explorative study investigates the relation between exposure of the fruit grower to pesticides and fecundability (probability of pregnancy) in a population of fruit growers.

methodsThe analysis is based on self reported data and includes 91 pregnancies during 1978-1990 of 43 couples. Cox' proportional hazards model was used to analyse time to pregnancy after correction for gravidity and consultation with a physician for fertility problems. RESULTS AND

conclusionsApplication of pesticides solely by the owner was associated with a long time to pregnancy, resulting in a fecundability ratio of 0.46 (95% confidence interval (95% CI) 0.28-0.77). Similarly a low spraying velocity (< or = 1.5 hectares/h) resulted in a fecundability ratio of 0.47 (95% CI 0.29-0.76) and is associated with the use of older spraying techniques and tractors without a cabin. These factors were assumed to cause high exposure, which was confirmed by exposure measurements in the field. The effect of high exposure was mainly apparent if the couple had intended to become pregnant in the period from March-November (fecundability ratio 0.42, 95% CI 0.20-0.92). This is the period in which pesticides are applied. Out of the spraying season the effect of a high exposure was absent (fecundability ratio 0.82, 95% CI 0.33-2.02). In the high exposure group 28% of the pregnancies had been preceded by consulting a physician because of fertility problems, compared with 8% in the low exposure group. These findings indicate that an adverse effect of exposure to pesticides on fecundability is likely.

Indexed as

AgriculturePaternal ExposureAdultAgricultural Workers' DiseasesAgrochemicalsAir Pollutants, OccupationalFemaleFertilityFruitHumansInfertility, MaleMaleOccupational ExposurePatient Acceptance of Health CarePregnancySeasonsAgrochemicalsAir Pollutants, Occupational

Identifiers

PMID8000495
PMCPMC1128079
OpenAlexW2131328589

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.