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Table 2 Characteristics of Four Race-Gender Groups of Primary Care Hypertensive Patients with High Baseline LDL Cholesterol

From: A Retrospective Cohort Study of the Potency of lipid-lowering therapy and Race-gender Differences in LDL cholesterol control

Characteristic Black
women
(N = 1,440)
Black
men
(N = 666)
White women
(N = 661)
White
men
(N = 717)
P Value
Baseline LDL cholesterol [mg/dl], mean [SD] 142.8 (29.9) 138.9 (28.0) 144.0 (24.3) 137.2 (23.4) < 0.001
LDL control by 6 months after baseline, % 16.8 18.9 20.3 28.5 < 0.001
LDL cholesterol tests within 6 months after baseline, N [SD] 0.85 (0.75) 0.90 (0.79) 0.80 (0.77) 0.92 (0.90) 0.026
Sociodemographic      
Age [years], mean [SD] 68.4 (9.7) 61.4 (11.1) 68.4 (9.9) 62.3 (10.5) < 0.001
Median income in zipcode of residence, mean $ [SD] 28,360 (10,904) 30,692 (12,825) 57,004
(23,790)
58,680 (23,464) < 0.001
Insurance type [%]      
   Commercial 46.4 60.7 57.5 72.5 < 0.001
   Medicaid 17.4 14.9 2.0 2.2  
   Medicare 35.4 22.8 40.2 24.8  
   Self pay 0.8 1.7 0.3 0.4  
LDL Cholesterol      
Baseline LDL [mg/dl], mean [SD] 142.8 (29.9) 138.9 (28.0) 144.0 (24.3) 137.2 (23.4) < 0.001
LDL tests within 6 months mean [SD] 0.85 (0.75) 0.90 (0.79) 0.80 (0.77) 0.92 (0.90) 0.026
LDL control by 6 months after baseline, % 16.8 18.9 20.3 28.5 < 0.001
Clinical      
Vascular disease, % 30.1 28.2 21.2 21.1 < 0.001
Diabetes, % 41.5 46.2 19.5 31.1 < 0.001
Renal insufficiency, % 13.3 21.9 3.3 9.6 < 0.001
Unrelated comorbidities, # 6.3 5.4 5.5 4.9 < 0.001
Tobacco use, %      
   Current 11.2 14.9 5.0 10.3 < 0.001
   No 55.3 45.2 70.8 54.7  
   Not recorded 33.5 39.9 24.2 35.0  
Lipid-lowering Drug Therapy     
Treated (%) 57.4% 54.7% 52.5% 53.7% 0.134
Potency per day of treatment, mean (SD) 0.96 (0.26) 0.97 (0.25) 0.90 (0.25) 0.91 (0.3) < 0.001
Duration of treatment, days, mean (SD) 964.5 (550.3) 919.6 (537.6) 887.3 (544.9) 911.7 (548.4) 0.01
Total potency, categorical (treated only)      
   None, % 42.6 45.4 47.5 46.3  
   Lower [≤840],% 26.5 28.5 26.5 30.3 0.007
   Higher [> 840],% 31.0 26.1 26.0 23.4  
Health Care      
Primary care arrived visits per year, mean (SD) 6.3 (4.2) 6.5 (4.6) 5.8 (3.7) 5.7 (6.1) 0.002
Kept < 60% of scheduled visits, % 19.7 20.7 13.0 10.2 < 0.001
Maximum concurrent anti-hypertensive drugs, mean N (SD) 2.5 (1.3) 2.3 (1.3) 1.9 (1.1) 1.8 (1.2) < 0.001
Provider (N)      
Race, %      
   White (157) 60.7 62.5 90.6 91.2 < 0.001
   Asian (27) 11.7 7.7 3.3 2.5  
Other Minority (18) 27.6 30.0 6.1 6.3  
   Gender, %      
Female (110) 60.3 47.3 53.7 31.3 < 0.001
   Type, %      
Attending (74) 56.7 61.0 69.6 73.1 < 0.001
Resident (105) 17.0 16.2 7.9 8.4  
Nurse practitioner/Physician assistant (23) 26.3 22.8 22.5 18.6  
Annual arrived visits to 1916.8 1980.1 2009.0 2202.7 < 0.001
provider, mean N (SD) (1464.7) (1454.6) (1207.5) (1404.4)