Table 1.1. Group A, μ’s and time-variant DPF (mean ±SD) at baseline and Valsalva.

	Group A - μ’s (cm−1)			Group A - DPF (no units)
λ(nm)	Baseline	Valsalva	change	Baseline	Valsalva	change
690	11.7 ± 3.1	11.9 ± 3.2	+2%	7.6 ± 1.1	7.5 ± 1.3	−1%
750	9.4 ± 2.0	9.4 ± 1.9	0%	6.3 ± 0.8	6.3 ± 0.9	0%
790	10.5 ± 3.1	10.6 ± 3.3	+1%	7.4 ± 1.0	7.2 ± 1.1	−3%
850	9.7 ± 2.4	9.5 ± 2.6	−2%	6.4 ± 0.9	6.4 ± 0.9	0%