Table 4.

Marginal effects of encouragement on the likelihood of accessing a patient portal (among those who were offered a patient portal), overall and stratified by race and ethnicity, 2020 (Adjusted estimates)

	(1)	(2)	(3)	(4)	(5)
Variables	All respondents	White	Black or Hispanic	Black	Hispanic
Encouraged	0.214*** (0.0620)	0.220*** (0.0597)	0.206** (0.102)	0.199 (0.134)	0.260** (0.123)
Observations	1792	1192	458	241	217

Note: Columns (1)–(5) report marginal effects derived from separate weighted linear probability models that control for gender, education, income, rurality, insurance status, chronic condition, having a regular healthcare provider, and number of internet access types. The analytical weight is the survey weight interacted with the inverse of the propensity score. Column (1) includes all respondents; this specification controlled for race/ethnicity as a categorical variable (White is the reference group) and included a set of interaction terms between race/ethnicity and encouragement (estimates on the interactions were not statistically significant). Columns (2)–(5) report results from analyses stratified by White, Black or Hispanic, Black, and Hispanic, respectively. All analyses were restricted to respondents who went to the doctor in the last year and those who reported being offered a patient portal by their healthcare provider. Standard errors are in parentheses.

^*** P < .01,

^** P < .05.

All analyses were restricted to respondents who had a healthcare visit in the past year and who reported being offered a portal by their healthcare provider. Standard errors are in parentheses. Full regression output is available in the Supplementary Appendix.