Table 4.

Multiple linear regression for Δϕ_spark

Coefficient	Predictor	Value
A1 (µM s2 µm−4)	${\stackrel{-}{n}}_O$ ∂Caϕspark DCa2	(8.54 ± 1.68) × 10−7
A2 (µM s2 µmol−2 m4)	${\stackrel{-}{n}}_O$ ∂Caϕspark jCa2	(8.71 ± 0.65) × 10−3
A3 (µM ms−2)	${\stackrel{-}{n}}_O$ ∂Caϕspark τd2	(5.89 ± 0.15) × 10−5