Table 1.

Subjective data

		Sleep group	Sleep deprivation group
Number of subjects	All	13	11
	Women	8	5
	Men	5	6
Age (in years)	All	20.6 ± 0.4	20.4 ± 0.5
	Women	21.5 ± 0.4	20.2 ± 0.7
	Men	19.2 ± 0.4	20.5 ± 0.7
Body weight (in kg)	All	65.4 ± 4.9	64.6 ± 5.7
	Women	56.9 ± 6.0	50.2 ± 7.6
C-reactive Protein (mg/L)	Men	79.0 ± 3.7	76.7 ± 4.2
	All	0.98 ± 0.26	1.22 ± 0.32
	Women	0.97 ± 0.25	1.21 ± 0.38
Ig G (g/L)	Men	0.99 ± 0.60	1.24 ± 0.53
	All	10.61 ± 0.63	10.5 ± 0.41
	Women	10.61 ± 0.85	10.56 ± 0.70
Ig A (g/L)	Men	10.60 ± 1.04	10.38 ± 0.53
	All	1.99 ± 0.25	2.10 ± 0.41
	Women	1.82 ± 0.23	2.13 ± 0.39
	Men	2.28 ± 0.23	2.07 ± 0.55
Ig M (g/L)	All	1.30 ± 0.16	1.22 ± 0.18
	Women	1.46 ± 0.23	1.54 ± 0.29
	Men	1.05 ± 0.16	0.96 ± 0.18

All variables are presented with mean ± S.E.M. Three days before vaccination, circulating levels of C-reactive protein and immunglobulin subclasses (A, G, M) were analyzed by normal laboratory routine. No statistical differences were found between the groups (assessed by Mann-Whitney-U-tests).