Table 5.

Relationship between obesity prevalence/incidence and parity, education and age in 761 low-to middle-income Chilean women, 2007–2010

	Obesity (BMI ≥ 30 kg/m2)
	Univariate model		Multivariate model
	OR/RR†	95 % CI	OR/RR†	95 % CI
Age (years)
Prevalence OR	1·05**	1·03, 1·07	1·05**	1·03, 1·08
Incidence RR	1·02**	0·99, 1·05	1·01	0·98, 1·05
<12 years of education‡
Prevalence OR	1·49*	1·09, 2·04	1·40	0·99, 1·98
Incidence RR	1·54	0·98, 2·42	1·46	0·90, 2·38
Baseline parity (number of children)
Prevalence OR	1·17*	1·03, 1·33	1·01	0·86, 1·19
Incidence RR	1·12	0·94, 1·33	1·06	0·85, 1·32
Change in parity during follow-up (number of childbirths)
Prevalence OR	1·09	0·77, 1·53	1·23	0·86, 1·77
Incidence RR	1·45*	1·04, 2·03	1·53**	1·21, 1·90

RR, relative risk.

*Significant relationship: *P < 0·05, **P < 0·01.

†Exponentiated coefficients from logistic regression models for obesity prevalence or binomial regression models for obesity incidence (OR and RR).

‡≥12 years of education is the reference category.