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Table 4 Rates of missing data in placebo relative to treatment group in placebo controlled trials (n = 34)

From: A systematic review of randomised controlled trials in rheumatoid arthritis: the reporting and handling of missing data in composite outcomes

Months of follow-up

Relative rate

 

Mean (95 % CI)

3 months (n = 12)

1.36 (0.80, 2.29)

6 months (n = 16)

1.72 (1.26, 2.35)

12 months (n = 5)

1.78 (1.19, 2.64)

Total (n = 34)a

1.61 (1.29, 2.02)

  1. 17 trials were excluded due to not having a placebo group; trend test p value = 0.296
  2. CI confidence intervals
  3. aThe total number of trials includes one trial with 24 months follow-up
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Trials

ISSN: 1745-6215