Table 7.
Negative binomial univariable and multivariable regression analyses for incident rates on exposure to high-risk situations based on the level of PPE use by the veterinary personnel in Punjab, India 2015.
| Variable | Number | Mean (SD) | Estimate |
IRRa (95%CI) |
P value |
Estimate |
Adjusted IRRb (95%CI) |
P value |
|---|---|---|---|---|---|---|---|---|
| Univariable model | Multivariable model | |||||||
| Occupation | ||||||||
| Intercept | −0.4 (0.2) | <0.001 | −1.5 (0.5) | <0.001 | ||||
| Animal Handler | 95 | 0.05 (0.4) | −2.5 (0.3) | 0.08 (0.02–0.2) | −2.3 (0.5) | 0.1 (0.03–0.3) | ||
| Para-veterinarians | 134 | 0.5 (0.9) | −0.4 (0.5) | 0.7 (0.4–1.2) | −0.2 (0.3) | 0.8 (0.4–1.5) | ||
| Veterinarian | 67 | 0.7 (1.1) | – | Ref | – | Ref | ||
| PPE use encouraged by the ability to perform efficiently | ||||||||
| Intercept | −2.1 (0.4) | |||||||
| Low | 73 | 0.1 (0.4) | Ref | 0.001 | Ref | 0.004 | ||
| High | 217 | 1.0 (0.9) | 1.4 (0.4) | 3.9 (1.8–9.4) | 1.2 (0.4) | 3.2 (1.4–7.6) | ||
| Information source | ||||||||
| Intercept | −2.1 (0.3) | |||||||
| People | 41 | 0.5 (0.9) | Ref | 0.006 | ||||
| Government | 151 | 0.5 (0.9) | 1.3 (0.5) | 3.6 (1.4–9.5) | ||||
| Journals/books | 104 | 0.1 (0.5) | 1.3 (0.4) | 4.3 (2.1–9.0) | ||||
| Age | ||||||||
| Intercept | −0.6 (0.4) | 0.14 | ||||||
| 20–30 | 38 | 0.6 (1.0) | Ref | |||||
| 31–40 | 103 | 0.3 (0.7) | −0.7 (0.4) | 0.5 (0.3–1.1) | ||||
| 41–50 | 59 | 0.3 (0.7) | −0.7 (0.5) | 0.5 (0.2–1.3) | ||||
| 50+ | 96 | 0.5 (0.9) | −0.1 (0.4) | 0.9 (0.4–2.1) | ||||
| PPE use encouraged by zoonotic risk | ||||||||
| Intercept | −2.6 (0.8) | 0.03 | ||||||
| Low | 28 | 0.1 (0.3) | ||||||
| High | 265 | 0.4 (0.9) | 1.8 (0.8) | 5.9 (1.4–39.7) | ||||
| Performed AI last month | 0.09 | |||||||
| Intercept | −1.4 (0.3) | |||||||
| No | 74 | 0.2 (0.7) | Ref | |||||
| Yes | 222 | 0.4 (0.9) | 0.6 (0.4) | 1.8 (0.9–3.8) | ||||
| PPE use encouraged by past experience | ||||||||
| Intercept | −1.1 (0.2) | 0.1 | ||||||
| Low | 195 | 0.3 (0.7) | Ref | |||||
| High | 93 | 0.5 (1.0) | 0.5 (0.3) | 1.6 (0.9–3.0) | ||||
| Brucellosis tested | ||||||||
| Intercept | −1.2 (0.2) | 0.1 | ||||||
| No | 154 | 0.3 (0.8) | Ref | |||||
| Yes | 138 | 0.5 (0.9) | 0.5 (0.3) | 1.6 (0.9–2.9) | ||||
| PPE use discouraged by time constraints | 0.1 | |||||||
| Intercept | −1.1 (0.2) | |||||||
| Low | 215 | 0.3 (0.8) | Ref | |||||
| High | 73 | 0.5 (1.0) | 0.5 (0.3) | 1.6 (0.8–3.0) | ||||
| PPE use encouraged by keeping the clothes clean | ||||||||
| Intercept | −1.2 (0.3) | 0.2 | ||||||
| Low | 85 | 0.3 (0.7) | Ref | |||||
| High | 206 | 0.4 (0.9) | 0.4 (0.3) | 1.5 (0.8–2.8) | ||||
| Attended infertility cases in last month | ||||||||
| Intercept | −1.2 (0.3) | 0.13 | ||||||
| No | 80 | 0.2 (0.7) | Ref | |||||
| Yes | 216 | 0.4 (0.9) | 0.5 | 1.7 (0.8–3.4) | ||||
a
IRR = Incidence rate ratio.
b
Adjusted for ‘PPE use encouraged by the ability to perform efficiently’.