Patient selection: pregnant female
Parameters:
(1) maternal age
(2) chronic hypertension
(3) pregestational diabetes mellitus
(4) gestational hypertension or pre-eclampsia
(5) gestational age in weeks
(6) prepregnancy body mass index in kilograms per square meter
(7) maternal race
(8) scheduled cesearean delivery
(9) Medicaid
(10) interpregnancy interval in months
(11) number of prior births (parity)
(12) induction of labor
(13) sexually-transmitted infection (STI) during pregnancy
(14) prior preterm birth
|
Parameter
|
Finding
|
Points
|
|
maternal age
|
< 35 years
|
0
|
|
|
>= 35 years
|
0.267
|
|
chronic hypertension
|
no
|
0
|
|
|
yes
|
0.806
|
|
pregestational diabetes
|
no
|
0
|
|
|
yes
|
0.420
|
|
gestational hypertension or pre-eclampsia
|
no
|
0
|
|
|
yes
|
0.861
|
|
gestational age in weeks
|
|
-0.214 * (weeks)
|
|
body mass index
|
< 50
|
0
|
|
|
>= 50
|
0.535
|
|
race
|
white
|
0
|
|
|
black
|
0.241
|
|
|
Hispanic
|
0.202
|
|
|
other
|
0.421
|
|
scheduled cesarean
|
no
|
0
|
|
|
yes
|
1.557
|
|
Medicaid
|
no
|
0
|
|
|
yes
|
0.222
|
|
interpregnancy interval
|
|
0.002 * (months)
|
|
parity
|
|
0.121 * (births)
|
|
induction of labor
|
no
|
0
|
|
|
yes
|
0.972
|
|
STI during pregnancy
|
no
|
0
|
|
|
yes
|
0.268
|
|
prior preterm birth
|
no
|
0
|
|
|
yes
|
0.368
|
value of X =
= SUM(points for the 14 parameters) - 0.722
probability of ICU admission =
= 1 / (1 + EXP((-1) * X))
