Measurements of Liveborn Caucasian Infants at Sea Level: Birthweight

Description

The birthweight of Caucasian infants born at 25-44 weeks gestation after last menstrual period were measured and the distribution determined.

weeks gestation	mean-2 S.D.	mean	mean+2 S.D.
25	650	850	1050
26	703	933	1163
27	746	1016	1286
28	813	1113	1413
29	898	1228	1558
30	1023	1373	1723
31	1140	1540	1940
32	1277	1727	2177
33	1400	1900	2400
34	1553	2113	2673
35	1717	2347	2977
36	1889	2589	3289
37	2118	2868	3618
38	2333	3133	3933
39	2500	3360	4220
40	2560	3480	4400
41	2617	3567	4517
42	2553	3513	4473
43	2446	3416	4386
44	2414	3384	4354

Approximating Equations (JMP)

mean - 2SD =

= (0.0016482 * ((week gestation)^6)) - (0.338432 * ((week gestation)^5)) + (28.671586 * ((week gestation)^4)) - (1283.42 * ((week gestation)^3)) + (32033.829 * ((week gestation)^2)) - (422888.2 * (week gestation)) + 2307934.7

mean =

= (0.0016433 * ((week gestation)^6)) - (0.33604 * ((week gestation)^5)) + (28.331873 * ((week gestation)^4)) - (1261.357 * ((week gestation)^3)) + (31299.662 * ((week gestation)^2)) - (410654 * (week gestation)) + 2226933.4

mean + 2SD =

= (0.0016384 * ((week gestation)^6)) - (0.333649 * ((week gestation)^5)) + (27.99216 * ((week gestation)^4)) - (1239.293 * ((week gestation)^3)) + (30565.495 * ((week gestation)^2)) - (398419.8 * (week gestation)) + 2145932.1

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Description

Specialty

ICD-10