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Rev Med Inst Mex Seguro Soc. 2017 Jul-Aug;55(4):424-428.

[Risk factors associated with preterm birth in a second level hospital].

[Article in Spanish; Abstract available in Spanish from the publisher]

Author information

1
Coordinación de Educación e Investigación en Salud, Hospital General de Zona 2, Instituto Mexicano del Seguro Social, Tuxtla Gutiérrez, Chiapas, México. bety_escobar@hotmail.com.

Abstract

in English, Spanish

BACKGROUND:

Preterm birth is one of the biggest problems in obstetrics and gynecology, given that it has an incidence of 10-11%. The objective was to identify the risk factors associated with a preterm birth.

METHODS:

A retrospective, observational, transversal and analytic case-control study was made. All premature birth incidences were determined as study objects and controls were integrated with term deliveries. A sample size of 344 patients with a control per case was calculated. A total of 688 patients were studied. Statistical analysis was descriptive, univariate and bivariate and we used the Pearson chi square test, with a p < 0.05, odds ratios (OR) and 95% confidence intervals (95% CI).

RESULTS:

The risk factors associated with a preterm labor were placenta praevia: OR = 10.2 (p = 0.005); previous preterm delivery: OR = 10.2 (p = 0.005); preeclampsia: OR = 6.38 (p = 0.00); twin pregnancy: OR = 5.8 (p = 0.000); oligohydramnios: OR = 5.8 (p = 0.000); tobacco use: OR = 4.6 (p = 0.002); premature rupture of membranes (PROM): OR = 4.1 (p = 0.000); cervicovaginitis: OR = 3 (p = 0.000); urinary tract infections (UTI): OR = 1.5 (p = 0.010).

CONCLUSION:

Maternal history of prenatal care, preclampsia, PROM, twin pregnancy, placenta praevia, cervicovaginitis, previous preterm delivery and UTI are risk factors with statistical significance associated with preterm delivery.

KEYWORDS:

Preterm labor; Risk factors

PMID:
28591495
[Indexed for MEDLINE]

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