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Table 2 Regression coefficients for home range area and defecation sites in home range. Bivariate and multivariate linear regression models for log-area of home range, and negative binomial models for the number of open defecation sites within home ranges

From: Seasonal patterns in risk factors for Taenia solium transmission: a GPS tracking study of pigs and open human defecation in northern Peru

 

Home range area, eβ coefficients (95% CI)

Defecation sites in home range, incidence rate ratio (95% CI)

Bivariate

Multivariate

Bivariate

Multivariate

Village

 Village A

Ref.

Ref.

Ref.

Ref.

 Village B

0.48 (0.30–0.76)**

b0.47 (0.31, 0.70)**

7.06 (3.83–13.01)**

b7.94 (4.28–14.7)**

 Village C

0.24 (0.15–0.39)**

b0.23 (0.16, 0.35)**

1.25 (0.63–2.49)

b1.25 (0.57–2.70)

Season

 Rainy

Ref.

Ref.

Ref.

 Dry

0.40 (0.27–0.59)**

b0.39 (0.28,0.53)**

0.69 (0.39–1.21)

Household densitya

 ≤ 25

0.95 (0.92–0.97)**

1.03 (1.00–1.07)

1.07 (1.04–1.10)**

 > 25

1.05 (1.02–1.09)**

1.03 (0.99–1.08)

0.95 (0.93–0.98)**

Herd size (per additional pig)

1.06 (1.02–1.10)**

0.97 (0.91–1.03)

Pig sex

 Female

Ref.

Ref.

Ref.

 Male

0.78 (0.51–1.19)

0.94 (0.54–1.66)

b1.45 (1.01–2.08)*

Pig age (per month)

1.04 (1.0–1.08)*

0.98 (0.93–1.03)

Log-area of home range

1.50 (1.13–2.0)**

1.76 (1.43–2.16)**

  1. *P < 0.05, **P < 0.01
  2. aNumber of households within 100 m radius, linear spline at 25 households/100 m
  3. bSignificant statistical interactions (by village) not shown (see Additional file 1, Tables S2 and S3 for full model associations)