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Table 1 Demographics of study cohort, n = 19,150

From: Further validation that claims data are a useful tool for epidemiologic research on hypertension

Age*, mean(sd) 43.8(10.6)
Sex  
Female 2812(14.7%)
Male 16335(85.3%)
Unknown 3(0.0%)
Ethnicity  
African-American 2152(11.2%)
American Indian 156(0.8%)
Asian/Pacific Islander 225(1.2%)
Caucasian 15464(80.8%)
Hispanic 1125(5.9%)
Unknown 28(0.1%)
Employee Type  
Hourly 14113(73.7%)
Salary 5034(26.3%)
Unknown 3(0.0%)
Tenure* (yrs), mean(sd) 13.6(12.2)
Average No. of Chart Measurements, mean(sd) 2.6(4.2)
Frequency of Chart Measurements per Employee  
1 8455(44.2%)
2 4680(24.4%)
3 2529(13.2%)
4 1321(6.9%)
5+ 2165(11.3%)
  1. *Age and tenure were calculated using the date of the employee's first blood pressure measurement.