Table 6. Estimated Short-term Health Effects of Pesticide Exposure on Nerve Conduction among Farmers in China, 2009–2011 (FE Estimation).
| Dependent variables: ∆Indicator | Independent variables: ∆ frequencies of pesticide application | ||
|---|---|---|---|
| In past 3 days | In past 4–10 days | Constant | |
| Median MCV | 0.74 (0.10, 1.38)* | -0.15 (-0.66, 0.37) | 59.01 (58.55, 59.46)** |
| Ulnar MCV | 0.62 (0.03, 1.21)* | 0.28 (-0.20, 0.75) | 57.18 (56.76, 57.60)** |
| Ulnar SCV | 0.89 (0.14, 1.64)* | 0.32 (-0.29, 0.92) | 53.46 (52.92, 53.99)** |
| Median DML | -0.06 (-0.15, 0.03) | -0.07 (-0.15, -0.001)* | 3.46 (3.40, 3.53)** |
| Ulnar DML | -0.16 (-0.25, -0.07)** | -0.04 (-0.12, 0.04) | 2.83 (2.76, 2.89)** |
| Median proximal CMAP | -0.70 (-1.17, -0.23)** | -0.12 (-0.50, 0.26) | 13.27 (12.94, 13.61)** |
| Median distal CMAP | -0.61 (-1.07, -0.14)* | 0.02 (-0.35, 0.39) | 13.76 (13.43, 14.09)** |
| Ulnar proximal CMAP | -0.74 (-1.06, -0.42)** | -0.20 (-0.46, 0.06) | 12.25 (12.03, 12.48)** |
| Ulnar distal CMAP | -0.45 (-0.74, -0.16)** | -0.20 (-0.44, 0.04) | 12.89 (12.68, 13.10)** |
| Peroneal proximal CMAP | -0.12 (-0.39, 0.14) | -0.23 (-0.44, -0.01)* | 6.79 (6.60, 6.98)** |
| Median SNAP | -0.75 (-1.06, -0.45)** | 0.15 (-0.09, 0.40) | 8.20 (7.98, 8.41)** |
| Ulnar SNAP | -0.33 (-0.57, -0.09)** | -0.07 (-0.26, 0.12) | 6.19 (6.02, 6.35)** |
Abbreviations: CI, confidence interval; CMAP, compound muscle action potential; DML, distal motor latency; MCV, motor conduction velocity; SCV, sensory conduction velocity; SNAP, sensory nerve action potential.
* and ** represent the levels of significance at 5% and 1%, respectively.