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Table 2 Number of patients with at least one lab test performed and claimed among 703,484 initiators of statins and/or ezetimibe using 6, 9, and 12-month confounder assessment periods (CAPs)

From: Supplementing claims data with outpatient laboratory test results to improve confounding adjustment in effectiveness studies of lipid-lowering treatments

 

All patients

Number (%) of patients with at least 1 lab test performed*

Number (%) of patients with at least 1 LDL lab test performed

Number (%) of patients with at least 1 LDL lab test performed

6 month CAP

9 month CAP

12 month CAP

6 month CAP

9 month CAP

12 month CAP

6 month CAP

9 month CAP

12 month CAP

N

%

N

%

N

%

N

%

N

%

N

%

N

%

N

%

N

%

All patients

703,484

481,133

68%

505,161

72%

520,559

74%

421,708

60%

445,205

63%

460,293

65%

121,764

17%

132,358

19%

139,784

20%

DM patients

111,684

89,344

80%

92,185

83%

93,952

84%

74,576

67%

78,598

70%

81,104

73%

76,413

68%

79,932

72%

81,965

73%

RA patients

4,523

3,676

81%

3,774

83%

3,840

85%

2,650

59%

2,813

62%

2,915

64%

839

19%

918

20%

984

22%

  1. * All tests = any of a set of 23 different frequently-performed laboratory tests recorded in study database.