Hawks L, et al. - In order to find out changes between 1998 and 2017 in unmet need for physician services among insured and uninsured adults aged 18 to 64 years in the United States, researchers conducted a survey using 20 years of data, between January 1, 1998, and December 31, 2017, from the Centers for Disease Control and Prevention Behavioral Risk Factor Surveillance System to identify trends in unmet need for physician and preventive services. Between the adults aged 18 to 64 years in 1998 (n = 117,392) and in 2017 (n = 282,378) who acknowledged to the Centers for Disease Control and Prevention Behavioral Risk Factors Surveillance System (mean age was 39.2 [95% CI, 39.0-39.3]; 50.3% were female; 65.9% were white), uninsurance decreased by 2.1 (95% CI, 1.6-2.5) percentage points (from 16.9% to 14.8%). Notwithstanding coverage gains since 1998, most measures of the unmet requirements for physician services have revealed no improvement, and financial access to physician services has declined.