Table 2 A summary of antibiotic usage between the flare and non-flare populations.

From: Antibiotic treatment and flares of rheumatoid arthritis: a self-controlled case series study analysis using CPRD GOLD

 

Antibiotic group

Non-flare patients

Flare patients

Antibiotic usage (at least one prescription [%])

Beta-lactam

61.29%

76.01%

Imidazole

8.56%

11.99%

Macrolide

33.15%

49.07%

Nitrofurantoin

12.31%

19.20%

Quinolone

14.02%

21.48%

Sulphonamide and Trimethoprim

24.75%

32.21%

Tetracycline

19.52%

28.27%

Antibiotic usage (total DDD’s [+/− SD])

Beta-lactam

46.29 (+/− 137.41)

62.07 (+/− 134.11)

Imidazole

12.23 (+/− 16.04)

11.23 (+/− 12.72)

Macrolide

31.17 (+/− 91.43)

35.47 (+/− 102.81)

Nitrofurantoin

42.93 (+/− 185.45)

60.71 (+/− 243.65)

Quinolone

24.49 (+/− 80.50)

27.71 (+/− 83.52)

Sulphonamide and Trimethoprim

29.91 (+/− 156.68)

28.33 (+/− 97.17)

Tetracycline

58.26 (+/− 242.83)

56.50 (+/− 177.54)