Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method

Table 2

Adjusted obesity odds ratios in four surveys of Iranian adults.

Variable	2000		2007		2009		2011
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Age
20–30	1.00		1.00		1.00		1.00
30–40	2.44	2.18–2.72	2.61	2.35–2.91	2.42	2.14–2.72	2.16	1.81–2.59
40–50	3.52	3.13–3.94	3.66	3.30–4.06	3.74	3.23–4.20	3.41	2.86–4.08
50–60	3.40	2.98–3.88	3.52	3.17–3.90	3.52	3.13–3.94	3.25	2.74–3.86
60+	3.02	1.78–2.31	3.25	2.86–3.69	3.15	2.72–3.65	2.82	2.29–3.46
Sex
Men	1.00		1.00		1.00		1.00
Women	2.40	2.10–2.74	2.35	2.15–2.58	2.57	2.36–2.79	1.58	1.34–1.85
Place of residence
Rural	1.00		1.00		1.00		1.00
Urban	1.98	1.81–2.16	1.63	1.53–1.74	1.49	1.39–1.61	1.46	1.29–1.65
Employment status
Other	1.00		1.00		1.00		1.00
Public employed	0.72	0.61–0.84	0.76	0.67–0.87	0.74	0.58–0.96	0.55	0.45–0.67
Private employed	0.84	0.73–0.97	0.93	0.84–1.02	0.82	0.70–0.95	0.77	0.64–0.92
Smoking status
Nonsmoker	1.00		1.00		1.00		1.00
Current smoker	0.65	0.56–0.76	0.69	0.63–0.77	0.77	0.68–0.88	0.57	0.46–0.69

Adjusted for all other variables in the table.
Odds ratio.
Confidence interval.