Table 2 Overview of databases used in various works II
Reference | Classes (categories) | Division criteria for classes | # classes | # cases in classes | # total cases |
|---|---|---|---|---|---|
Nielsen et al. 1988 [28] | Normal; pathological | Apgar 1 min. < 7 or pH < 7.15 or BE < -10 | 2 | 34; 16 | 50 |
Chung et al. 1995 [29] | Normal; abnormal | pH < 7.15 | 2 | 65; 8 | 73 |
Keith et al. 1995 [30] | 5-tier scoring system | 17 clinicians, pH, BDecf, Apgar | 5 | 38; 12 | 50 |
Bernardes et al. 1998 [31] | norm.; susp.; pathol. | pH, Apgar, neonatology | 3 | 56; 22; 7 | 85 |
Maeda et al. 1998 [32] | norm.; susp.; pathol. | manual clinical rules | 3 | 12; 18; 19 | 49 |
Lee et al. 1999 [33] | Normal CTG; decels. | 1 clinician | 2 | N/A | 53 |
Chung et al. 2001 [34] | Normal; presumed distress; acidemic | norm. FHR; abnorm. & pH > 7.15; abnorm. & pH < 7.15 | 3 | 36; 26; 14 | 76 |
Strachan et al. 2001 [35] | Normal; abnormal | pH ≤ 7.15 & BDecf > 8 | 2 | 608; 71 | 679 |
Siira et al. 2005 [36] | Normal; acidemic | pH < 7.05 | 2 | 319; 15 | 334 |
Cao et al. 2006 [37] | reassuring; NR | 2 clinicians | 2 | 102; 44 | 148 |
Salamalekis et al. 2006 [38] | Normal; NR [NR & pH > 7.20; NR & pH < 7.20] | FIGO, pH < 7.20 | 2 | 32; 42 | 74 |
Georgoulas et al. 2006 [39] | Normal; at risk | pH > 7.20; pH < 7.10 | 2 | 20; 60 | 80 |
Costa et al. 2009 [41] | Omniview-SisPorto 3.5 alerts | pH < 7.05 | 2 | 7; 141 | 148 |
Elliott et al. 2010 [42] | Normal; abnormal | BDecf ≥ 12 & NE | 2 | 60; 2132 | 2192 |
Warrick et al. 2010 [43] | Normal; pathological | BDecf < 8; BDecf ≥ 12 | 2 | 187; 26 | 213 |
Jezewski et al. 2010 [25] | Normal; abnormal | Apgar N/A min. < 7 or birth weight < 10 th perc. or pH < 7.2 | 2 | 28% abnorm. | 749 |
Helgason et al. 2011 [44] | FIGO-TN; FIGO-FP; FIGO-TP | norm. FHR & pH ≥ 7.30; abnorm. & pH ≥ 7.30; abnorm. & pH ≤ 7.05 | 3 | 15; 17; 15 | 47 |
Chudacek et al. 2011 [22] | norm.; susp.; pathol. | 3 clinicians | 3 | 139; 306; 107 | 552 |
Spilka et al. 2012 [23] | Normal; pathological | pH < 7.15 | 2 | 123; 94 | 217 |
Georgieva et al. 2013 [45] | Normal; adverse | pH < 7.1 & neonatology | 2 | N/A | 7568 |
Czabanski et al. 2013 [46] | Normal; abnormal | Apgar 10 min. < 5 | 2 | 306; 27 | 2124 ‡ |