Table 1.

Patient data for the three groups.

Data	Conventional	Hydrogen water	Control	X2 (F)	Pvalue
Number of cases (N)	20	20	20
Gender (M/F, number)	12/8	11/9	8/12	1.814	0.416
Age (x±s, h)	11±6	11±5	12±5	0.975	0.413
Weight (x±s, kg)	3.1±0.3	3.2±0.5	3.5±0.4	0.527	0.613
Gestational age (x±s, d)	277±11	276±10	279±13	0.857	0.429
Mode of delivery Eutocia/Caesarean section	13/7	15/5	16/4	0.375	0.477
Degree of severity (mild/moderate-severe)	7/13	8/12		0.613	0.578