Table 3

Effect of Valsalva on heart rate, IOP, and POBF

NormalNTGPOAGp Value
NS = non-significant at 5% level.
Note: refer to text for explanation of “adjusted” p values.
Mean Valsalva heart rate (SD), (bpm) (n=60)82.3 (15.4)71.6 (10.8)82.9 (14.2)0.025
Mean change in heart rate (SD), (bpm) (n=60)10.3 (11.6)6.6 (7.1)11.3 (9.6)NS
Mean Valsalva IOP (SD), (mm Hg) (n=61)18.1 (4.0)16.5 (5.1)22.7 (5.6)0.001
Mean change in IOP (SD) (mm Hg) (n=61)+2.1 (2.4)+0.9 (2.5)−0.6 (1.8)0.002
Mean Valsalva POBF (SD) (μl/min) (n=58)773.4 (221.9)739.7 (328.1)537.8 (512.1)NS
Mean fall in POBF (SD), (μl/min) (n=58)375.0 (311.0)221.0 (259.5)334.7 (374.4)NS (0.294 unadjusted 0.542 adjusted)