We controlled for several potential confounders, including gender, age (in years), education (less than twelve years, twelve years, thirteen to fifteen years, sixteen plus years), and family income (<$10,000, $10,000–$29,999, $30,000–$49,999, $50,000+, and missing). We also adjusted for language of interview (Spanish, Polish, or English), based on evidence that the language of interview can affect responses to self-reported health (Viruell-Fuentes, Forthcoming).
