Table 2.
The impacts of temperature and precipitation on the incidence of LD.
| Main results | |||
|---|---|---|---|
| Dep. var.: LD incidence | (1) | (2) | (3) |
| Avg. temp.: below 5°C | 7.9101 (6.1820) | 4.9673 (5.9583) | 1.6156 (5.7073) |
| Avg. temp.: 5–7°C | 17.2713∗∗∗ (5.6208) | 13.3615∗∗ (5.4461) | 10.7294∗∗ (5.0919) |
| Avg. temp.: 7–9°C | 21.3359∗∗∗ (5.2593) | 16.2189∗∗∗ (5.2152) | 15.1306∗∗∗ (4.8862) |
| Avg. temp.: 9–11°C | 19.9290∗∗∗ (4.3244) | 15.4690∗∗∗ (4.5382) | 14.4033∗∗∗ (4.2444) |
| Avg. temp.: 11–13°C | 9.7629∗∗∗ (2.9059) | 6.5636∗∗ (3.1989) | 5.3232∗ (2.9025) |
| Avg. temp.: 13–15°C | 6.6229∗∗∗ (2.0306) | 4.7761∗∗ (2.1972) | 3.8847∗∗ (1.9730) |
| Reference: above 15°C | 0 | 0 | 0 |
| Total prcp.: below 70 cm | 13.0452∗∗ (5.4358) | 13.5556∗∗∗ (4.5898) | 4.6664 (4.5738) |
| Total prcp.: 70–120 cm | 10.7113∗∗ (4.7829) | 11.8325∗∗∗ (4.0619) | 4.2597 (3.9230) |
| Total prcp.: 120–170 cm | 8.1580∗∗ (4.1505) | 10.4118∗∗∗ (3.6474) | 5.3288 (3.4688) |
| Total prcp.: 170–220 cm | 3.7551 (3.1761) | 6.3591∗∗ (2.8603) | 3.6003 (2.6573) |
| Total prcp.: 220–270 cm | 1.8596 (2.8608) | 2.3633 (2.8913) | 1.2022 (2.8126) |
| Reference: above 270 cm | 0 | 0 | 0 |
|
| |||
| Year fixed effects | Yes | Yes | Yes |
| County fixed effects | Yes | Yes | Yes |
| Linear trend by state | Yes | Yes | |
| Quadratic trend by state | Yes | ||
|
| |||
| Observations | 7,956 | 7,956 | 7,956 |
| R 2 | 0.6771 | 0.7068 | 0.7226 |
| Adjusted R2 | 0.656 | 0.687 | 0.703 |
Note: this table presents the estimated impacts of climatic variables on the incidence of LD–cases per 100,000 population. Avg. temp. is annual average temperature, and total prcp. is annual total precipitation. Robust standard errors clustered at the county level are reported in parentheses. ∗∗∗Significance at 1 percent; ∗∗significance at 5 percent; ∗significance at 10 percent.