Table 1. Descriptive information about the study participants.

	Untreated		Laughing Gas				Pudendal Block
			Primary		Replication		Primary		Replication
	N = 77		N = 35		N = 31		N = 48		N = 31
Female (%)	43		46		55		29		42
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Gestational Age	275	15	281	10	282	14	277	15	277	12
(days)
	Cell-Type Proportions
B cells	0.08	0.03	0.08	0.03	0.08	0.02	0.08	0.03	0.08	0.02
Granulocytes	0.39	0.08	0.4	0.1	0.41	0.07	0.39	0.08	0.38	0.07
Monocytes	0.18	0.03	0.18	0.03	0.18	0.03	0.18	0.03	0.18	0.03
Natural killer cells	0.05	0.02	0.05	0.02	0.05	0.02	0.05	0.02	0.05	0.02
Cytotoxic T cells	0.15	0.04	0.15	0.04	0.14	0.04	0.15	0.04	0.16	0.04
T-helper cells	0.15	0.04	0.14	0.05	0.14	0.03	0.14	0.04	0.15	0.04

N is the number of participants in the primary and replication datasets, respectively, for each of the two treatments and for untreated individuals.