Table 2.
Logistic regression predicting obesity from soda consumption and ethnicity among non-institutionalized adults aged 18 years or over, California Health Interview Survey 2009 (n 36 271)
| Variable | AOR* | 95 % CI |
|---|---|---|
| Number of times drink soda per week† | 1·00 | 0·99, 1·02 |
| Ethnicity‡ | ||
| White | Ref. | |
| Chinese American | 0·11 | 0·07, 0·17 |
| Japanese American | 0·58 | 0·35, 0·94 |
| Korean American | 0·11 | 0·06, 0·22 |
| Filipino American | 0·62 | 0·38, 1·02 |
| South Asian American | 0·22 | 0·14, 0·33 |
| Vietnamese American | 0·21 | 0·13, 0·35 |
| Other Asian American | 0·27 | 0·12, 0·61 |
| Asian heritage group by soda interaction§ | ||
| Chinese American×soda | 1·22 | 1·09, 1·37 |
| Japanese American×soda | 1·04 | 0·95, 1·14 |
| Korean American×soda | 1·22 | 1·01, 1·46 |
| Filipino American×soda | 0·97 | 0·86, 1·09 |
| South Asian American×soda | 1·00 | 0·88, 1·14 |
| Vietnamese American×soda | 0·99 | 0·88, 1·13 |
| Other Asian American×soda | 1·19 | 1·03, 1·38 |
| Sociodemographic characteristics | ||
| Gender | ||
| Male | Ref. | |
| Female | 0·73 | 0·66, 0·80 |
| Age (years) | 1·01 | 1·00, 1·01 |
| Years of education | 0·94 | 0·92, 0·97 |
| Annual household income ($US, thousands) | 1·00 | 1·00, 1·00 |
| F | P value | |
| Test for interaction | 2·82 | 0·0118 |
| Hosmer–Lemeshow Goodness of Fit statistic | 0·47 | 0·8868 |
AOR, adjusted OR; ref., reference category.
Significant AOR and 95 % CI denoted in bold.
*
Adjusted for gender, age, years of education and income.
†
Represents the effect of each additional soda consumed for Whites.
‡
Represents the odds of being obese for each ethnic-origin group, relative to Whites and soda consumption of zero times per week.
§
Represents the difference in the effect of each additional soda consumed for Asian-American subgroup, relative to Whites.