Table 2

Number, frequency, and values of total cholesterol (TC), systolic blood pressure (SBP), and diastolic blood pressure (DBP) measurements

Mean ± SD

Min, Max

Median

Number of measurements per patient

20.8 ± 20.8

2, 124

14

Time interval between visits (months)

5.6 ± 9.7

0.13, 338.3

3.7

Time from study start to end (years)

9.3 ± 8.5

0.1, 35.0

6.5

TC at start of study (mmol/L)

5.2 ± 1.7

1.1, 16.1

4.9

SBP at start of study (mm Hg)

123 ± 19.2

80, 220

120

DBP at start of study (mm Hg)

77.2 ± 12.0

55, 180

80

SD, standard deviation; Min, Max, minimum and maximum.

Nikpour et al. Arthritis Research & Therapy 2010 12:R125   doi:10.1186/ar3063