Table 1.

Patient demographic characteristics

Patient characteristicNo incentive (n = 6,565)$5 Incentive (n = 1,000)$10 Incentive (n = 1,000)P value
Female sex, n (%)4,042 (61.6)610 (61.0)644 (64.4)0.194
Race, n (%)
 White2,428 (37.0)381 (38.1)368 (36.8)0.779
 Black1,578 (24.0)270 (27.0)245 (24.5)0.127
 Hispanic1,951 (29.7)257 (25.7)293 (29.3)0.034
 Asian127 (1.9)19 (1.9)23 (2.3)0.730
 Other405 (6.2)59 (5.9)54 (5.4)0.623
 Unknown76 (1.2)14 (1.4)17 (1.7)0.320
Language, n (%)
 English5,447 (83.0)852 (85.2)830 (83.0)0.208
 Spanish1,118 (17.0)148 (14.8)170 (17.0)0.208
 Median age, years (IQ range)56 (53–60)56 (53–60)56 (53–60)1.0