Skip to main content

Table 1 Characteristics of the height and weight data in the MVP cohort

From: A statistical quality assessment method for longitudinal observations in electronic health record data with an application to the VA million veteran program

 

Height

Weight

(N = 495,393)

(N = 496,292)

Total number of records

10,945,576

25,400,615

Number of subjects with multiple measurements, N (%)

 Single measurement

9,987 (2.0%)

3,206 (0.6%)

 >  = 2 measurements

485,406 (98.0%)

493,086 (99.3%)

 >  = 3 measurements

472,133 (95.3%)

488,684 (98.5%)

Number of measurements in a subject

 Mean (SD)

22.1 (20.4)

51.2 (59.8)

 Median (IQR)

17.0 (8, 29)

38 (19, 68)

Number of years of follow-up for a subject

 Mean (SD)

11.5 (5.2)

12.2 (5.1)

 Median

12.2 (7.2, 16.1)

13.1 (7.9, 16.8)

Number of measurements per calendar year in a subjecta

 Mean (SD)

2.0 (1.2)

3.7 (3.9)

 Median

2.0 (1.0, 2.0)

3.0 (2.0, 4.5)

  1. aMedian is used if subjects have multiple-year data