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. 2022 Sep 29;130(9):096002. doi: 10.1289/EHP9934

Table 7.

Characteristics of Latin American and the Caribbean studies on pesticide exposure and reproductive outcomes published between 2007 and 2021 (n=16).

Study Year of publication/country Population and sample size Study design Pesticides assessed Exposure assessment method Pesticide or metabolite concentrations Health effect and assessment method/instrument Results
Studies on OCs
 1. Bastos et al.204 2013/Brazil 15 women seeking help for infertility treatment/21 women spontaneously pregnant Case–control OCs Questionnaire (occupational and reproductive history).
Serum HCB, DDT, DDE, DDD
Mean±SD (ng/mL):
Fertile women: HCB=0.1±0.10; p,p-DDE=0.9±0.8; p,p-DDT=0.7±0.1
Infertile women: HCB=0.2±0.4; p,p-DDE=3.1±3.6; p,p-DDT=9.1±11.9
Fertility Infertile women had higher detectable serum DDE concentrations than fertile women (p=0.001).
 2. Blanco-Muñoz et al.202 2012/Mexico 84 male floriculture workers Prospective cohort OCs Questionnaire (occupational history)
Serum DDE
Median (range) (ng/g):
Rainy season: p,p-DDE=677.2(9.412,696.5)
Dry season: p,p-DDE=626.7(9.413,688.1)
Serum FSH, LH, prolactin, testosterone, estradiol, inhibin B p,p-DDE concentrations were negatively associated with prolactin (β=0.04; 95% CI: 0.07, 0.01) and testosterone (β=0.04; 95% CI: 0.08, 0.01), but positively associated with inhibin B (β=0.11; 95% CI: 0.02, 0.21). Null associations of p,p-DDE with FSH, LH, or estradiol.
 3. Freire et al.203 2014/Brazil 604 men and women living near an abandoned pesticide factory Cross-sectional OCs Questionnaire (residential exposure history)
Serum HCH, HCB, chlordane, trans-nonachlor, heptachlor, DDT, DDE, DDD, endosulfan, aldrin, endrin, dieldrin, methoxychlor, mirex
Median (P25–P75) (ng/mL):
Premenopausal women: α-HCH=2.8(1.06.1); β-HCH=6.3(2.514.4); γ-HCH=0.9(0.42.3); HCB=0.4(0.10.6); α-chlordane=0.3(<LOD0.6); γ-chlordane=0.2(<LOD0.4); trans-nonachlor=0.4(0.20.8); heptachlor=0.4(<LOD0.9); p,p-DDE=8.0(3.021.8); o,p-DDT=0.4(<LOD1.1); p,p-DDT=3.0(1.07.3); p,p-DDD=0.6(0.21.2); endosulfan 1=0.2(<LOD0.4); endosulfan 2=0.2(<LOD0.8); aldrin=2.1(0.813.4); endrin=0.6(0.31.6); dieldrin=0.6(0.21.3); methoxychlor=0.4(<LOD1.0); [mirex<LOD<LOD0.3]
Peri-/postme nopausal women: α-HCH=2.4(1.16.1); β-HCH=11.7(4.836.3); γ-HCH=1.1(0.62.0); HCB=0.4(0.20.8); α-chlordane=0.3(0.10.6); γ-chlordane=0.2(<LOD0.4); trans-nonachlor=0.4(0.20.8); heptachlor=0.3(<LOD0.7); p,p-DDE=20.6(6.265.6); o,p-DDT=0.4(<LOD1.2); p,p-DDT=4.7(1.210.7); p,p-DDD=0.9(0.31.8); endosulfan 1=0.2(<LOD0.5); endosulfan 2=0.3(<LOD0.6); aldrin=3.8(1.020.1); endrin=0.5(0.21.4); dieldrin=0.6(0.31.2); methoxychlor=0.5(0.21.0); mirex<LOD (<LOD0.5)
Men: α-HCH=2.5(1.00.7); β-HCH=6.0(2.115.4); γ-HCH=1.0(0.42.2); HCB=0.3(0.10.6); α-chlordane=0.2(<LOD0.5); γ-chlordane=0.2(<LOD0.4); trans-nonachlor=0.3(0.20.8); heptachlor=0.3(<LOD0.9); p,p-DDE=8.3(2.921.9); o,p-DDT=0.3(<LOD0.9); p,p-DDT=3.1(0.97.0); p,p-DDD=0.6(0.21.3); endosulfan 1=0.2(<LOD0.5); endosulfan 2=0.2(<LOD0.7); aldrin=1.9(0.711.0); endrin=0.6(0.21.5); dieldrin=0.6(0.31.3); methoxychlor=0.5(<LOD1.0); mirex<LOD (<LOD0.3)
Serum testosterone, estradiol, progesterone, prolactin, LH, FSH Higher heptachlor and o,p-DDT were associated with decreased testosterone levels among men (β=0.03; 95% CI: 0.04, 0.01, and β=0.02; 95% CI: 0.05, 0.01, respectively).
Among peri-/postmenopausal women, higher aldrin was associated with increased estradiol levels (β=0.006; 95% CI: 0.001, 0.01), but decreased LH (β=0.01; 95% CI: 0.02, 0.003) and FSH (β=0.007; 95% CI: 0.01, 0.001) levels. Higher p,p-DDD and endosulfan 1 were associated with decreased LH (β=0.09; 95% CI: 0.17, 0.02, and β=0.24; 95% CI: 0.46, 0.03, respectively) and FSH (β=0.09; 95% CI: 0.15, 0.03; β=0.23; 95% CI: 0.41, 0.05, respectively) levels. Higher HCB (β=0.13; 95% CI: 0.2, 0.02), p,p-DDT (β=0.01; 95% CI: 0.02, 0.003), endosulfan 2 (β=0.14; 95% CI: 0.25, 0.03), and mirex (β=0.07; 95% CI: 0.12, 0.02) were also associated with decreased LH levels among this group of women.
Among premenopausal women, no associations were found.
 4. Ayhan et al.189 2021/Guadeloupea,b 285 mother–child (7 years of age) pairs Prospective cohort OCs Cord and child blood chlordecone, cord blood DDE Median (P25–P75) (μg/L):
Cord blood chlordecone: boys=0.25(0.080.41), girls=0.21(0.070.37); child chlordecone: boys=0.06(<LOD0.11), girls=0.05(<LOD0.11); cord blood DDE: boys=0.22(0.090.64), girls=0.31(0.100.74)
Serum DHEA, TT, DHT, estradiol Third quartile of cord blood chlordecone was associated with elevated DHEA (β for boys=0.5; 95% CI: 0.1, 1.0; β for girls=0.4; 95% CI: 0, 0.7), TT (OR for boys=3.2; 95% CI: 1.1, 9.6; OR for girls=3.3; 95% CI: 1.3, 8.2), and DHT (OR for boys=3.7; 95% CI: 1.3, 10.6; OR for girls=3.2; 95% CI: 1.0, 10.2) levels in boys and girls, relative to first quartile of cord blood chlordecone.
Studies on OPs or CBs
 5. Recio-Vega et al.209 2008/Mexico 19 sprayer farmworkers/16 non-sprayer farmworkers/17 non-farmworkers Prospective cohort OPs Questionnaire (occupational, residential, and seasonal exposure histories).
Urinary DAPs
Mean±SD total DAPs (ppb):
Non-occupationally exposed=1,004.8±2,380.49
Farmworkers but not OP sprayers=1,054.6±1,916.2
Sprayers exposed to OP=1,283.7±2,304.9
Semen quality Sprayer farmworkers had lower sperm volume (β=0.7, p=0.002) and lower sperm count (β=2.2, p=0.03) than non-farmworkers. During low exposure period, non-sprayer farmworkers had lower rapid progressive motility (β=17.2, p=0.04). During medium exposure period sprayer farmworkers had lower sperm volume (β=0.3, p=0.02). During high exposure period, seminal parameters were similar among all groups. Sperm vitality was lower at higher levels of DMDTP (β=146.3, p=0.006). No other seminal parameters were associated with DAP levels.
 6. Yucra et al.208 2008/Peru 31 male farmworkers/31 controls Cross-sectional OPs Questionnaire (occupational exposure history)
Urinary DAPs
Geometric mean±GSD (μg/L):
Nonexposed: DEP=3.0±2.1; DEDTP=10.2±54.5; DETP=2.7±1.0; DMP=9.6±19.5; DMDTP=56.4±6.7; DMTP=9.7±68.7
Exposed: DEP=3.8±8.2; DEDTP=25.3±78.6; DETP=3.9±7.2; DMP=14.2±42.4; DMDTP=5.3±4.5; DMTP=22.9±48.6
Semen quality
Serum testosterone, estradiol, FSH, LH
Higher concentrations of ethylated OP metabolites were associated with lower seminal volume (p=0.02), whereas higher concentrations of methylated OP metabolites were associated with higher seminal pH (p=0.02). After controlling for ethylated OP metabolites, exposure to pesticides (yes/no) was associated with increased seminal pH (p=0.02). After controlling for methylated OP metabolites, exposure to pesticides (yes/no) was associated with increased seminal pH (p=0.002) and decreased seminal fructose levels (p=0.04).
Null associations of pesticide exposure and serum hormone levels.
 7. Blanco-Muñoz et al.207 2010/Mexico 104 male floriculture workers Cross-sectional OPs Questionnaire (occupational exposure history)
Urinary DAPs
Median (range) (μg/g creatinine):
Low exposure: DMP=17.4(5.4196.8); DMTP=11.0(4.6156.8); DMDTP=7.8(4.6165.2); DEP=16.2(5.429.9); DETP=8.3(4.714.4); DEDTP=8.6(2.431.0); total DAPs=77.8(35.0305.3)
Medium exposure: DMP=89.9(12.39,213.9); DMTP=31.6(6.0377.2); DMDTP=9.6(3.088.1); DEP=20.3(4.3113.6); DETP=10.6(3.560.2); DEDTP=5.5(3.051.5); total DAPs=216.5(59.39,324.3)
High exposure: DMP=76.6(6.9986.3); DMTP=29.0(3.31,359.0); DMDTP=9.3(3.2437.0); DEP=15.9(3.1153.9); DETP=9.6(2.7625.5); DEDTP=6.2(2.734.9); total DAPs=190.7(34.32,270.8)
Serum FSH, LH, prolactin, testosterone, inhibin B, estradiol Higher DMP (β=0.001; 95% CI: 0.002, 0.0002), DEP (β=0.01; 95% CI: 0.02, 0.002), DETP (β=0.004; 95% CI: 0.01, 0.0001) and total DAP (β=0.001; 95%CI: 0.001, 0.0002) concentrations were associated with decreased inhibin B levels. Higher DEP concentrations were associated with decreased FSH (β=0.002; 95% CI: 0.004, 0.0005). Higher DEP (β=0.002; 95% CI: 0.00001, 0.004) and total DAP (β=0.0001; 95% CI: 0.000005, 0.0003) concentrations marginally associated with increased testosterone levels. Higher DETP marginally was associated with decreased LH levels (β=0.001; 95% CI: 0.002, 0.0001).
 8. Cecchi et al.26 2012/Argentinaa 97 pregnant women living in a rural area with intensive use of pesticides Prospective cohort OPs Questionnaire (residential exposure history)
Blood AChE and BChE
β-glucuronidase
Not applicable Serum progesterone (measured during spray and prespray season) Higher AChE activity was associated with increased progesterone levels (β=57.8; p0.05).
 9. Miranda-Contreras et al.200 2013/Venezuelab 64 male farmworkers/35 controls Cross-sectional OPs, CBs Questionnaire (occupational exposure history)
Blood AChE and BChE
Not applicable Semen quality
Sperm chromatin integrity (DFI)
Serum testosterone, FSH, LH, PRL
Farmworkers had higher seminal pH (p=0.004) and lower percentage of live sperm (p<0.001) than controls. Farmworkers with decreased BChE activity had higher DFI (r=0.3, p=0.027). Null associations of serum hormones with cholinesterase levels.
 10. Aguilar-Garduño et al.205 2013/Mexico 136 male floricultural workers Prospective cohort OPs Urinary DAPs Median (GM) total DAPs (μmol/g creatinine):
Rainy season=1.62(2.00); Dry season=0.48(0.48)
Serum FSH, LH, prolactin, testosterone, estradiol, inhibin B Higher total DAP concentrations were associated with increased FSH and prolactin levels (p<0.01 for each) and decreased testosterone (p<0.01) and inhibin B levels (p=0.11).
 11. Silvia et al.210 2020/Argentinac 53 pregnant women living in areas with intensive pesticide application Cross-sectional OPs, CBs Questionnaire (residential exposure history)
Blood AChE, BChEd
Not applicable Plasma estradiol, progesterone (measured during spray and non-spray season) Progesterone and estradiol levels did not differ between spray and non-spray seasons.
Studies on other pesticides or multiple pesticide classes
 12. Sanin et al.211 2009/Colombia 2,592 fertile women from regions with different levels of aerial glyphosate spraying Retrospective cohort Glyphosate Questionnaire (residential and occupational exposure history)
Ecological exposure index (different levels of exposure according to agricultural practices)
Not applicable TTP Reduced fecundability was not associated with aerial glyphosate spraying.
 13. Rojas and Guevara212 2014/Venezuela 180 women of reproductive age Cross-sectional Multiple pesticide classes Questionnaire (occupational exposure history) Not applicable Menstrual cycle and bleeding duration Women who were occupationally exposed to pesticides had longer menstrual cycles than women who did not have contact with pesticides (p<0.01). Null association between bleeding duration and pesticide exposure.
 14. Miranda-Contreras et al.213 2015/Venezuela 64 male farmworkers/64 controls Cross-sectional Multiple pesticide classes Questionnaire (occupational exposure history) Not applicable Semen quality
Sperm chromatin integrity (DFI)
Farmworkers had decreased sperm concentration (p=0.01), vitality (p<0.001), slow progressive motility (p=0.01), lower sperm membrane integrity (p=0.001), and high DFI (p<0.001) compared with controls.
 15. Cremonese et al.214 2017/Brazil 99 rural young men/36 urban young men Cross-sectional Multiple pesticide classes Questionnaire (residential, occupational, and reproductive exposure history)
Blood AChE and BChE
Not applicable Semen quality
Genital measurements (AGD, TV)
Serum testosterone, LH, FSH, SHBG, prolactin
Rural men had decreased normal sperm morphology (β=0.7; 95% CI: 0.6, 0.9), increased sperm count (β=1.6; 95% CI: 1.01, 2.5), increased TV (β=1.3; 95% CI: 1.1, 1.5), decreased LH levels (β=0.8; 95% CI: 0.7, 1.0) and increased T:LH ratio (β=1.3; 95% CI: 1.1, 1.6) compared with urban men. Farmers who had 6 y working had decreased T:LH ratio (β=0.8; 95% CI: 0.7, 1.0) and decreased TV (β=0.8; 95% CI: 0.8, 1.0) (Ref<6); who had >1 y handling pesticides had decreased LH levels (β=0.8; 95% CI: 0.7, 1.0), increased T:LH ratio (β=1.2; 95% CI: 1.1, 1.4), lower normal morphology (β=0.7; 95% CI: 0.6, 0.9) and increased TV (β=1.2; 95% CI: 1.1, 1.4) (Ref 1), and who had 5 d/y handling pesticides had increased LH levels (β=1.2; 95% CI: 1.0, 1.4) and lower normal morphology (β=0.8; 95% CI: 0.8, 1.0) (Ref<5). Those farmworkers who used pesticides in the high use season had increased prolactin levels (β=1.4; 95% CI: 1.2, 1.7), and those who did not use PPE had decreased testosterone levels (β=0.9; 95% CI: 0.8, 1.0) and TV (β=0.8; 95% CI: 0.8, 1.0). Maternal farming during pregnancy was associated with increased AGD (β=1.1; 95% CI: 1.01, 1.1) and TV (β=1.2; 95% CI: 1.02, 1.3). Cholinesterase activities were not associated with reproductive hormones or semen quality.
 16. Santos et al.201 2019/Brazilb 122 farmworkers and their families Cross-sectional Multiple pesticide classes Questionnaire (occupational, residential, and seasonal exposure history) Not applicable Serum LH, testosterone, estradiol, LH, FSH Recent use of fungicides in general (% change=41%; 95% CI: 11, 80), λ-cyhalothrin (59%; 95% CI: 13, 123), and phthalimide (95%; 95% CI: 37, 176) was associated with increased LH levels in men. Working in agriculture (1–30 y) was associated with increased testosterone levels in men (20%; 95% CI: 2, 40) (reference group never worked in agriculture).

Note: %change, percentage change; AChE, acetylcholinesterase; AGD, anogenital distance; BChE, butyrylcholinesterase; CBs, carbamate pesticides; CE, carboxylesterases; CI, confidence interval; DAP, dialkylphosphate; DDD, dichlorodiphenyldichloroethane; DDE, dichlorodiphenyldichloroethylene; DDT, dichlorodiphenyltrichloroethane; DEDTP, Diethyldithiophosphate; DEP, diethylphosphate; DETP, diethylthiophosphate; DFI, fragmentation Index; DHEA, dehydroepiandrosterone; DHT, dihydrotestosterone; DMDTP, dimethyldithiophosphate; DMP, dimethylphosphate; FSH, follicle-stimulating hormone; GSD, geometric standard deviation; HCB, hexa-chlorobenzene; IQR, interquartile range; LH, luteinizing hormone; LOD, limit of detection; OC, organochlorine; OP, organophosphate; P, percentile; PPE, personal protective equipment; PRL, Prolactin; Ref, reference group; SD, standard deviation; SHBG, sex hormone-binding globulin; T:LH, testosterone/luteinizing hormone ratio; TT, total testosterone; TTP, time to pregnancy; TV, testis volume.

a

Also included in Table 9 (other health outcomes).

b

Also included in Table 6 (thyroid function).

c

Also included in Table 8 (birth size and child growth).

d

Investigators did not use exposure biomarker concentrations in multivariate analyses.