Table 2. Univariate analysis on factors associated with nematode positivity on farms producing free-range chickens in the state of Paraíba, Brazil.

Variable		farms (n)	+ farms (%)	p
Balanced feed				0.128
	No	60	47 (78.3)
	Yes	40	36 (90.0)
Birth rate				0.159
	1 - 30	83	71 (85.5)
	> 30	17	12 (70.6)
Diarrhea				0.110
	No	77	61 (79.2)
	Yes	23	22 (95.7)
Pallor				0.182
	No	81	65 (80.2)
	Yes	19	18 (94.7)