Comparison of sonographic fetal weight estimation formulas in patients with preterm premature rupture of membranes

Table 3 Comparison of twenty-one formulas for fetal weight estimation

Formula #	Reference	Pearson coefficient (r)	SE (%)	RE (%)	POE < 10% (%)	ED (%)	Identified as SGA (%)	Rank
Group 1 (AC and FL)
1	Hadlock 1 (1985)	0.928	−2.35	13.27	58.6	13.48	48.8	8
2	Woo (1985)	0.929	−7.98	14.91	44.4	16.91	58.5	14
3	Warsof (1986)	0.913	2.44	15.41	50.6	15.60	41.5	12
Group 2 (AC and BPD)
4	Vintzileos (1987)	0.923	−0.76	14.08	54.3	14.10	31.7	10
5	Warsof (1977)	0.922	−13.42	12.06	32.6	18.04	63.4	15
6	Shepard (1982)	0.924	− 4.90	13.25	54.0	14.13	46.3	11
7	Jordaan (1983)	0.928	14.83	17.21	36.6	22.72	12.2	19
8	Hadlock (1984)	0.925	−4.34	13.17	56.5	13.87	46.3	9
9	Woo (1985)	0.922	−13.66	11.99	30.1	18.18	63.4	16
10	Hsieh (1987)	0.754	−80.15	21.50	0.7	82.98	90.2	21
Group 3 (AC and HC (±BPD))
11	Hadlock (1984)	0.937	−4.69	12.26	56.8	13.13	46.3	3
12	Jordaan (1983)	0.930	13.29	15.17	37.7	20.17	19.5	18
13	Jordaan (1983)	0.927	28.11	24.00	20.2	36.96	4.9	20
Group 4 (AC, FL and BPD)
14	Hadlock 2 (1985)	0.933	−4.90	12.39	57.7	13.32	48.8	7
15	Woo (1985)	0.925	−10.66	12.24	41.8	16.23	51.2	13
16	Shinozuka (1987)	0.932	0.62	13.09	60.9	13.10	34.1	2
17	Hsieh (1987)	0.895	5.14	18.40	46.4	19.10	14.6	17
Group 5 (AC, FL and HC)
18	Hadlock 3 (1985)	0.936	−5.17	12.16	57.3	13.21	48.8	4
19	Combs (1993)	0.940	3.23	12.85	58.9	13.25	29.3	5
20	Ott (1986)	0.940	0.36	12.42	62.8	12.43	71.4	1
Group 6 (AC, FL, BPD and HC)
21	Hadlock 4 (1985)	0.935	−5.40	12.17	56.6	13.31	48.8	6

SE Systemic error, RE Random error, POE Proportion of estimations, ED Euclidean distance, SGA Small for gestational age, AC Abdominal circumference, FL Femur length, BPD Biparietal diameter, HC Head circumference

ISSN: 1471-2393