Breastfeeding and overweight/obesity among children and adolescents: a cross-sectional study

BMC Pediatrics

Table 1 Relationship between demographic characteristics and breastfeeding of children and adolescents (aged 6 to 16 years) in Shibei District of Qingdao, China

	Duration of breastfeeding (months)
	< 12 months (n 4573)		≧12 months (n 6180)
Characteristics	Mean or n	SD or %	Mean or n	SD or %	P value
Age^a	9.45	2.27	9.24	2.22	< 0.001
Sex^b
Male	2196	40.89	3174	59.11	0.001
Female	2377	44.16	3006	55.84
Ethnicity^b
Han	4495	42.49	6084	57.51	0.536
Others	78	44.83	96	55.17
Parity^b
First	4047	43.89	5174	56.11	< 0.001
Others	526	34.33	1006	65.67
Birth method^b
Vaginal delivery	1996	39.00	3122	61.00	< 0.001
Cesarean delivery	2577	45.73	3058	54.27
Gestational age at birth^b
Preterm birth	272	54.51	227	45.49	< 0.001
Full-term birth	4100	41.77	5715	58.23
Post-term birth	201	45.79	238	54.21
Birth weight (kg)^a	3.49	0.54	3.52	0.54	0.001
Birth height (cm)^a	50.89	1.91	50.97	1.83	0.264
BMI (kg/m2)^a	18.47	4.17	17.91	3.83	0.001
Body type^b
Normal	2762	41.71	3860	58.29	0.030
Overweight	795	43.85	1018	56.15
Obesity	1016	43.83	1302	56.17

ISSN: 1471-2431