Table 3.

Group averages (n = 9) of non‐invasively estimated intracranial pressure for nine astronauts without optic disc oedema, before spaceflight, after spaceflight and after recovery

		Pre(L−3/6m)	Post(R+0/3d)	Rec(R+1/6m)	P value
nICP	Supine	11.9 ± 2.1	10.1 ± 1.5 *#	11.7 ± 1.9	0.005
(mmHg)	Sitting	7.3 ± 2.7	6.3 ± 1.3	6.1 ± 1.9	0.304

Pre(L−3/6m), 3–6 months before launch; Post(R+0/3d), 0–3 days after landing; Rec(R+1/6m), 1–6 months after landing. P value, one‐way repeated measures ANOVA for differences among the three time points for n = 9. ^* P < 0.05 vs. Pre(L−3/6m), ^# P < 0.05 vs. Rec(R+1/6m). nICP, non‐invasively estimated intracranial pressure.