Page 93 - Contributed Paper Session (CPS) - Volume 5

CPS1108 Collins O. et al.
Β1 0.2507 0.1203 0.015 0.4865
Intervention1 -0.2127 0.0759 -0.361 -0.0639
(BeMOnC)
Intervention2 0.2046 0.2704 -0.325 0.7346
(CeMOnC)
2
σ 0.0622 N/A N/A N/A

Post-Partum Haemorrhage (PPH)
Postpartum haemorrhage, defined as the loss of more than 500 mL of
blood after delivery, occurs in up to 18% of births. Blood loss exceeding 1,000
mL is considered physiologically significant and can result in hemodynamic
instability.
Count GLM for PPH with SE and CI (level = 95 %) obtained by normal
approximation. Link function is log and distribution family is negative binomial. The
Log-likelihood value is -293. Overdispersion coefficient σ was estimated to be
2
0.0135
Coefficient Estimate Std. Error CI(Lower) CI(Upper)
(Intercept) 3.2288 0.6034 2.046 4.411
Β1 0.4257 0.1075 0.215 0.636
Intervention1 -0.17 0.0449 -0.258 -0.082
(BeMOnC)
Intervention2 -0.0567 0.1391 -0.329 0.216
(CeMOnC)
2
σ 0.0135 N/A N/A N/A

Obstructed Labour
Labour is considered obstructed when the presenting part of the fetus
cannot progress into the birth canal, despite strong uterine contractions.
Count GLM for Obstructed Labor with SE and CI (level = 95 %) obtained by normal
approximation.
Link function is log and distribution family is negative binomial. The Log-likelihood
value is -306. Score test on intervention(s) of given type at given time is has p-value
2
<0. Overdispersion coefficient σ was estimated to be 0.0267
Coefficient Estimate Std. Error CI(Lower) CI(Upper)

(Intercept) 2.998 0.7485 1.531 4.4649

Β1 0.4629 0.134 0.2 0.7256

Intervention1 -0.123 0.0558 -0.232 -0.0137
(BeMOnC)

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