Table 1.
Variables extracted from database.
Fig 1.
Participant selection algorithm.
Table 2.
Sociodemographic data and main univariable subgroup analyses. Other ethnicities includes all ethnicities not categorised as black, mixed, south Asian or white.
Fig 2.
Heat map showing the coefficient of variation for multivariable analysis according to median CRP result, sex, age, ethnicity, deprivation and BMI.
Blue colours represent lower values of CV and red colours represent higher values of CV. Age is in years; CRP is in mg/L, deprivation score is Townsend deprivation score. Age < 20 excluded.Total N aged 20-60 = 142,970; Total N aged >60 = 261,566.
Fig 3.
Coefficient of variation by patient median CRP (mg/L) with 95% confidence intervals.
Fig 4.
Probability of second result being 10 mg/L different than first result.
The last two columns show the probability (%) of the second result being at least 10 or more mg/L different than the first score. First and second results are in mg/L. All age groups were included in this analysis. Blue colours represent lower probabilities and red colours represent higher probabilities.