A. Culturally tailored PCP outreach resulted in a significantly higher rate of vaccination than usual care (adjusted hazard ratio [aHR], 1.22; 95% CI, 1.09-1.37; P < .001), as did standard PCP outreach (aHR, 1.17; 95% CI, 1.04-1.31; P = .007). The difference between culturally tailored and standard PCP outreach was not significant (aHR, 1.04; 95% CI, 0.94-1.17; P = .42). B. Culturally tailored PCP outreach resulted in a higher rate of vaccination than usual care, but the difference was not statistically significant (aHR, 1.16; 95% CI, 0.98-1.37; P = .09). The differences between standard PCP outreach and usual care (aHR, 1.02; 95% CI, 0.85-1.21; P = .85) and between culturally tailored and standard PCP outreach (aHR, 1.14; 95% CI, 0.96-1.35; P = .13) were not significant. C. Culturally tailored PCP outreach resulted in a significantly higher rate of vaccination than usual care (aHR, 1.25; 95% CI, 1.00 - 1.56; P = .049). The differences between standard PCP outreach and usual care (aHR, 1.12; 95% CI, 0.89-1.40, P = .33) and between culturally tailored and standard PCP outreach was not significant (aHR, 1.12; 95% CI, 0.90-1.39, P = .32) were not significant. D. Culturally tailored PCP outreach resulted in a significantly higher rate of vaccination than usual care (aHR, 1.30; 95% CI, 1.06-1.59; P = .011), as did standard PCP outreach (aHR, 1.45; 95% CI, 1.19-1.77; P < .001). The difference between culturally tailored and standard PCP outreach was not significant (aHR, 0.90; 95% CI, 0.74-1.08; P = .25).