TABLE 3.

Depiction of data of all 10 CSF flow dynamics parameters separated by sex and age using the mean, SD, and 95% CIs.

	Male (17–50) (n = 31)	Male (51–88) (n = 31)	Female (17–50) (n = 32)	Female (51–88) (n = 34)
Flow parameter	mean; SD; 95% CI	mean; SD; 95% CI	mean; SD; 95% CI	mean; SD; 95% CI
Stroke volume (ml)	0.015; 0.008; [0.013; 0.018]	0.024; 0.014; [0.019; 0.029]	0.011; 0.007; [0.008; 0.013]	0.013; 0.009; [0.010; 0.016]
Forward flow volume (ml)	0.060; 0.037; [0.046; 0.073]	0.079; 0.041; [0.065; 0.093]	0.038; 0.021; [0.031; 0.045]	0.048; 0.028; [0.039; 0.058]
Backward flow volume (ml)	0.045; 0.030; [0.035; 0.056]	0.054; 0.030; [0.044; 0.065]	0.028; 0.017; [0.022; 0.034]	0.036; 0.021; [0.029; 0.043]
Regurgitant fraction	0.726; 0.062; [0.704; 0.748]	0.688; 0.090; [0.656; 0.720]	0.685; 0.170; [0.626; 0.744]	0.702; 0.140; [0.655; 0.750]
Absolute stroke volume (ml)	0.106; 0.067; [0.082; 0.129]	0.132; 0.070; [0.107; 0.157]	0.067; 0.038; [0.054; 0.081]	0.083; 0.047; [0.067; 0.099]
Mean flux (ml/s)	0.016; 0.008; [0.013; 0.019]	0.027; 0.015; [0.022; 0.032]	0.012; 0.007; [0.009; 0.014]	0.015; 0.010; [0.011; 0.018]
Stroke distance (cm)	0.345; 0.130; [0.299; 0.391]	0.430; 0.219; [0.353; 0.508]	0.310; 0.154; [0.257; 0.363]	0.358; 0.179; [0.298; 0.418]
Mean velocity (cm/s)	0.374; 0.145; [0.322; 0.425]	0.470; 0.227; [0.390; 0.549]	0.347; 0.166; [0.289; 0.404]	0.407; 0.211; [0.336; 0.478]
Peak velocity (cm/s)	9.496; 3.312; [8.330; 10.662]	10.822; 3.641; [9.540; 12.104]	8.095; 3.245; [6.970; 9.219]	9.050; 3.459; [7.887; 10.212]
Peak pressure gradient (mmHg)	0.040; 0.028; [0.030; 0.050]	0.052; 0.035; [0.039; 0.064]	0.031; 0.024; [0.022; 0.039]	0.037; 0.032; [0.027; 0.048]