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Table 6 meta-regression of the effects of six different studies' aspects on diagnosis value of FNAB

From: Diagnostic value of fine-needle aspiration biopsy for breast mass: a systematic review and meta-analysis

Covariates Number of studies Coefficient RDOR 95%CI P-value
QUADAS ≥ 10 34 0.747 2.11 0.60-7.47 0.2389
21-gauge 19 -0.705 0.49 0.16-1.53 0.2149
imaging guidance systems 13 -1.383 0.25 0.07-0.95 0.0417
histopathology only 35 1.705 5.5 1.04-29.08 0.0451
prospective 5 0.74 2.1 0.25-17.36 0.4829
Asia 31 0.433 1.56 0.33-7.43 0.5696