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Table 1 The telomerase data taken from the bladder cancer review of Glas et al. [13]

From: Bivariate random-effects meta-analysis and the estimation of between-study correlation

Study Number of patients with bladder cancer Number of patients with bladder cancer and a positive test result Sensitivity Logit-sensitivity Y i1 Standard error of logit-sensitivity S i1 Number of patients without bladder cancer Number of patients without bladder cancer and a negative test result Specificity Logit-specificity Y i2 Standard error of logit-specificity S i2 Within-study correlation ? Wi
1 33 25 0.758 1.139 0.406 26 25 0.962 3.219 1.020 0
2 21 17 0.810 1.447 0.556 14 11 0.786 1.299 0.651 0
3 104 88 0.846 1.705 0.272 47 31 0.660 0.661 0.308 0
4 26 16 0.615 0.470 0.403 83 80 0.964 3.283 0.588 0
5 57 40 0.702 0.856 0.290 138 137 0.993 4.920 1.004 0
6 47 38 0.809 1.440 0.371 30 24 0.800 1.386 0.456 0
7* 43 23.5 0.547 0.187 0.306 13 12.5 0.962 3.219 1.442 0
8 33 27 0.818 1.504 0.451 20 18 0.900 2.197 0.745 0
9 17 14 0.824 1.540 0.636 32 29 0.906 2.269 0.606 0
10 44 37 0.841 1.665 0.412 29 7 0.241 -1.145 0.434 0
  1. * 0.5 was added to each cell of the 2 by 2 table for this study, as a continuity correction was needed given there were zero false negatives