Table 3.

Prevalence ratios and adjusted prevalence ratios for the associations between length of residence in urban area and overweight and obesity as assessed by BMI, PERU MIGRANT Study, 2007

	Crude Model		Model A		Model B
	Unadjusted PR	95 % CI	Adjusted PR	95 % CI	Adjusted PR	95 % CI
Overweight
Length of urban residence (continuous, 10-year units)	0·96	0·78, 1·18	1·03	0·83, 1·28	0·99	0·78, 1·26
Length of urban residence (categories)
<20 years	1·00	Ref.	1·00	Ref.	1·00	Ref.
20–29 years	1·37	0·71, 2·69	1·61	0·81, 3·22	1·61	0·77, 3·33
30–39 years	1·41	0·70, 2·81	1·75	0·86, 3·60	1·52	0·70, 3·27
≥40 years	1·13	0·55, 2·31	1·46	0·69, 3·09	1·39	0·61, 3·18
Obesity
Length of urban residence (continuous, 10-year units)	1·09	0·84, 1·41	1·26	0·96, 1·65	1·19	0·88, 1·61
Length of urban residence (categories)
<20 years	1·00	Ref.	1·00	Ref.	1·00	Ref.
20–29 years	3·91	1·25, 12·22	5·76	1·76, 18·86	5·59	1·64, 18·99
30–39 years	4·56	1·45, 14·42	7·77	2·31, 26·05	6·47	1·83, 22·87
≥40 years	3·07	0·94, 10·02	5·34	1·53, 18·65	4·79	1·27, 18·14

PR, prevalence ratio; Ref. reference category.

Model A shows adjusted relative PR from multinomial logistic regression that included sex and age at first migration.

Model B is equal to Model A adjusted also by deprivation index, education level, smoking status, physical activity and alcohol consumption.

Significant associations are shown in bold font.