Skip to main content
. 2016 Mar 10;6:22978. doi: 10.1038/srep22978

Table 3. Subgroup analysis of diagnostic indices (with 95% confidence intervals) and subsequent meta-regression on DOR.

Subgroup No. of studies Sensitivity pooled Specificity pooled PLR pooled NLR pooled DOR pooled RDOR P Value
Study design                
 Prospective 12 86(82–88) 97(91–100) 7.3(3.7–14.2) 0.14(0.07–0.27) 70(29–170) 1.29(0.18–9.12) 0.785
 Retrospective 4 79(72–86) 98(88–99) 10.8(3.3–35.5) 0.24(0.14–0.41) 52(13–204)    
Study length                
 <12 9 89(85–92) 95(84–99) 6.4(3.0–13.4) 0.14(0.06–0.30) 61(22–167) 2.08(0.34–12.75) 0.400
 >12 7 80(76–84) 99(93–100) 11.5(4.5–29.3) 0.21(0.12–0.36) 68(23–205)    
Location                
 USA 8 85(79–89) 97(89–100) 7.43(3.4–16.2) 0.19(0.12–0.33) 56(20–161) 115(0.22–5.98) 0.859
 Others 8 84(81–87) 98(91–100) 8.85(3.7–21.1) 0.14(0.06–0.32) 73(25–214)    
Study center                
 Single 11 81(77–85) 97(89–100) 6.65(3.3–13.1) 0.19(0.11–0.32) 45(18–110) 2.86(0.50–16.52) 0.218
 Multiple 5 90(85–93) 98(91–100) 13.1(4.4–38.7) 0.12(0.05–0.27) 136(37–501)    
On–site pathol–ogist for all                
 Yes 8 88(83–92) 96(82–100) 5.3(2.4–11.8) 0.16(0.06–0.38) 42(13–132) 3.77(0.64–22.33) 0.132
 No 8 82(79–86) 98(92–100) 12.7(5.4–29.5) 0.17(0.09–0.29) 87(32–233)    
Needle type                
 PreCore 10 91(88–93) 99(93–100) 9.3(4.3–20.6) 0.12(0.08–0.20) 95(36–247) 0.87(0.26–2.92) 0.811
 Trucut 4 62(54–69) 97(84–100) 6.7(2.1–21.6) 0.43(0.32–0.57) 18(5–71)    
 Flexible 2 97(90–100) 93(66–100) 6.6(1.9–23.7) 0.05(0.02–0.16) 235(24–2295)    
Ratio of head and uncinate                
 >0.6 6 90(86–94) 96(87–100) 8.7(3.6–20.6) 0.11(0.05–0.23) 125(38–411) 0.62(0.08–4.61) 0.599
 <0.6 6 86(82–90) 98(89–100) 9.2(3.4–24.9) 0.16(0.06–0.40) 62(14–272)    
No. of patinets                
 >50 10 85(82-88) 98(93–100) 11.9(5.6–25.8) 0.14(0.08–0.24) 98(40–242) 0.19(0.03–1.14) 0.067
 <50 6 82(75–88) 94(73–100) 4.7(1.9–11.4) 0.22(0.09–0.55) 25(7–96)    

PLR, positive likelihood ratio; NLR, Negative likelihood ratio; DOR, diagnostic odds ratio; RDOR, relative diagnostic odds ratio; CI, confidence intervals.