THE PHILIPPINE 
JOURNAL OF SCIENCE 
VoL. XIV MARCH, 1919 No. 8 
PELVIMETRY AND CEPHALOMETRY AMONG FILIPINO 
WOMEN AND NEWBORN BABIES 
MADE ON ONE THOUSAND TWO HUNDRED THIRTY-SEVEN CASES * 
By Honorta Acosta-SIsoN and FERNANDO CALDERON 
(From the Department of Obstetrics, University of the Philippines) 
. FIVE TEXT FIGURES 
This paper is a continuation of the preliminary work which 
was presented before this Assembly in 1914.2 Our object is to 
study in further detail and in a much greater number of cases the 
normal Filipino pelvis, its difference from the pelvis of the white 
woman, and its efficiency in obstetrics. In this paper we have 
increased our investigations. We have determined the available 
space in the posterior triangle of the pelvic outlet and studied 
its importance in effective delivery in cases where there is short- 
ening of the intertuberal diameter. Moreover, the size of the 
full-term newborn child’s head, the length of labor, the length 
of the second stage, and the influence of the weight of the baby 
and its position on the final outcome of parturition have also been 
observed. 
MATERIAL 
Our studies have been made on one thousand two hundred 
thirty-seven cases of the free obstetrical department of the Phil- 
ippine General Hospital. For the purpose of investigating the — 
effect of parity on the length of labor and size of the child, 
the data of the multiparz were separated from those of the 
primipare. To obviate any error which might exist in the meas- 
urements taken by different persons, one of us (H. A. 8.) 
*Read at the IV Asamblea Regional de Médicos y Farmacéuticos de 
Filipinas, February, 1918. 
* Philip. Journ. Sci. §B 9 (1914) 493-497. 
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