Table 1

Demographic characteristics of mothers and infants with (modified) Rome III dyschezia and controls5

	1 month		3 months		9 months
Diagnosis	Rome	m-Rome	Rome	m-Rome	‘Rome’	m-Rome	Control5
Mother's age (years, mean)	30.0	30.6	32.6	31.2	29.1	31.2	32.0
n	51	222	11	84	11	73	600
p Value*	0.03	ns	ns	ns	ns	ns
Sex
Male (%)	45	54	55	57	40	49	51.2
Female (%)	55	46	45	43	60	51	48.8
n	44	199	11	76	10	70	552
p Value	ns	ns	ns	ns	ns	ns
Birth weight (g, mean)
Male	3676	3582	3446	3510	3257	3449	3694
Female	3610	3466	3713	3428	3541	3568	3531
n	50	199	10	74	11	69	552
p Value	ns/ns	0.03/ns	ns/ns	0.02/ns	ns/ns	0.005/ns
Exclusively breast fed
1 month (%)	43	41	36	43	36	62	65.1
n	51	90	11	36	11	45
p Value	0.002	<0.001	0.05	<0.001	0.05	ns
3 months (%)	26	27	18	24	30	34	44.4
n	47	54	11	20	10	24
p Value	0.008	<0.001	ns	<0.001	ns	ns

Rome, diagnosis according to the Rome III criteria; ‘Rome’, same criteria, apart from age; m-Rome, diagnosis according to the suggested modified Rome III criteria.
*p Value is tested against the control group.