Table 4

ORs, adjusted for maternal smoking during pregnancy and child’s sex, of high (≥P75) specific pesticide exposures and childhood respiratory outcomes during last 12 months

Current wheeze (N=62)Ever doctor-diagnosed asthma (N=37)Current dry cough (N=118)Current LRTI (N=15)
OR95% CIOR95% CIOR95% CIOR95% CI
Prenatal metabolites* (n=303)
TCP1.520.81 to 2.790.880.37 to 1.921.110.65 to 1.891.090.29 to 3.31
ETU1.220.63 to 2.280.860.35 to 1.90.910.52 to 1.551.110.3 to 3.39
OHP0.580.27 to 1.150.790.32 to 1.771.040.6 to 1.770.740.17 to 2.42
OHT0.650.31 to 1.270.650.25 to 1.491.080.63 to 1.830.430.07 to 1.61
2,4-D1.210.63 to 2.250.460.16 to 1.110.860.5 to 1.481.50.45 to 4.42
3PBA1.220.64 to 2.270.60.23 to 1.381.150.67 to 1.960.70.16 to 2.31
DCCA0.810.4 to 1.550.210.05 to 0.620.740.42 to 1.271.060.29 to 3.23
∑ Pyrethroid†1.120.58 to 2.090.390.13 to 0.980.910.52 to 1.551.040.28 to 3.17
Child metabolites* (n=293)
TCP0.940.48 to 1.791.140.5 to 2.460.780.45 to 1.352.050.66 to 5.89
ETU0.580.27 to 1.150.660.25 to 1.530.940.54 to 1.612.090.68 to 6.02
OHP1.210.63 to 2.261.40.62 to 2.971.290.75 to 2.22.10.68 to 6.07
OHT1.170.61 to 2.21.820.84 to 3.80.910.52 to 1.562.030.66 to 5.85
2,4-D0.840.42 to 1.610.540.19 to 1.280.760.43 to 1.311.470.45 to 4.32
3PBA1.720.92 to 3.171.750.81 to 3.661.410.82 to 2.412.70.91 to 7.82
DCCA1.951.05 to 3.582.090.98 to 4.361.350.79 to 2.312.060.67 to 5.93
∑ Pyrethroid†2.371.28 to 4.342.090.98 to 4.361.580.92 to 2.712.780.94 to 8.04
  • ISA study at 5 years of age, Matina County, Costa Rica 2015–2016.

  • *Variables dichotomised at 75th percentile; reference: below 75th percentile.

  • †∑ Pyrethroid: sum of PBA and DCCA.

  • 2,4-D, 2,4-dichlorophenoxyacetic acid; ETU, ethylenethiourea; OHP, hydroxypyrimethanil; OHT, 5-hydroxythiabendazole; 3-PBA, 3-phenoxybenzoic acid, DCCA: 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid; TCP, 3,5,6 trichloro-2-pyridinol.