Table 2.

Covariance analysis for age and PSA between the hotspot and non-sprayed area

Term	Estimate	Std error	t Ratio	Prob > |t|
Intercept	−1.060456	0.31217	-3.40	0.0008
Area	−0.018832	0.02573	−0.73	0.4652
Age	0.015443	0.00464	3.33	0.0011
Area*Age	−0.004661	0.00464	−1.00	0.3166

Interaction: Area*Age