Table 5.
Multiple linear regression models for captan in air, hand rinse, thigh patch, and forearm patch samples: application method included as the measure of application size
| Dependent variable | n | β | SE | P-value | Factora |
| Air: ln(captan, μg m−3) | 136 | ||||
| Intercept | −0.6115 | 0.7034 | 0.39 | ||
| Application method (AB/HS = ref.) | 1.4895 | 0.2986 | <0.0001 | 4.4 | |
| Captan formulation (WP/liquid = ref.) | 3.0759 | 0.6537 | <0.0001 | 22 | |
| Hand: ln(captan, μg) | 138 | ||||
| Intercept | 5.1238 | 0.4129 | <0.0001 | ||
| Wore CR gloves—mixing (Y/N = ref.) | −1.6644 | 0.3680 | <0.0001 | 0.19 | |
| Application method (AB/HS = ref.) | 1.5531 | 0.4175 | 0.0004 | 4.7 | |
| Mean concentration captan in tank (mg l−1) | 0.2901 | 0.1250 | 0.023 | 1.3 | |
| R. thigh: ln(captan, μg) | 136 | ||||
| Intercept | 1.5827 | 1.1554 | 0.18 | ||
| Additive used (Y/N = ref.) | 1.9662 | 0.5942 | 0.0015 | 7.1 | |
| Wore CR gloves—applying (Y/N = ref.) | −1.5796 | 0.4864 | 0.0018 | 0.21 | |
| Wore coverall/suit—mixing (Y/N = ref.) | −0.9659 | 0.4019 | 0.019 | 0.38 | |
| Captan formulation (WP/liquid = ref.) | 2.7018 | 1.1658 | 0.023 | 14.9 | |
| L. thigh: ln(captan, μg) | 134 | ||||
| Intercept | 1.3937 | 1.1165 | 0.22 | ||
| Wore coverall/suit—mixing (Y/N = ref.) | −2.0721 | 0.5327 | 0.0002 | 0.13 | |
| Captan formulation (WP/liquid = ref.) | 3.0259 | 1.1308 | 0.0093 | 21 | |
| R. forearm: ln(captan, μg) | 137 | ||||
| Intercept | 1.9080 | 0.7022 | 0.0083 | ||
| Additive used (Y/N = ref.) | 1.2987 | 0.4539 | 0.0055 | 3.7 | |
| Captan formulation (WP/liquid = ref.) | 1.9489 | 0.6993 | 0.0068 | 7.0 | |
| Wore coverall/suit – mixing (Y/N = ref.) | −1.0823 | 0.4265 | 0.013 | 0.34 | |
| L. forearm: ln(captan, μg) | 138 | ||||
| Intercept | 2.1543 | 0.5778 | 0.0004 | ||
| Additive used (Y/N = ref.) | 2.1322 | 0.5242 | 0.0001 | 8.4 | |
| Tree fruit stage (Late/early = ref.) | 1.5291 | 0.4615 | 0.0015 | 4.6 | |
| Wore CR gloves – mixing (Y/N = ref.) | −1.6647 | 0.5115 | 0.0017 | 0.19 | |
| Repaired spray equipment (Y/N = ref.) | 1.1074 | 0.3834 | 0.0051 | 3.0 |
R, right; L, left; ref., referent; WP, wettable powder.
a
exp(β). Dichotomous variable: multiplicative factor by which captan exposure increases or decreases from reference condition. Continuous variable: multiplicative factor by which captan exposure increases (or decreases) when variable (e.g. application method) increases (or decreases) by a multiplicative factor of e (i.e. 4.4).