Table 11.15Characteristics of included studies on diagnostic value of maternal history of previous SPTB

Study and ELStudy characteristicsPopulation characteristicsSample size (% of study population)Timing of screening test with threshold (prevalence of test positive)Outcome in weeks (incidence of SPTB)Diagnostic value with 95% CI
Goldenberg (1998)880 (USA)
EL 1b
Prospective cohort, multicentre.Singleton pregnancies.
Exclusions: multiple gestations, cervical cerclage, placenta previa, major fetal anomaly.
1711
(58.4% – rest were primiparas)
History of previous SPTB (20–37 weeks) at 22–24 weeks visit
(21.2% in study population)
< 32, < 35, and < 37 (11.9% at < 37)For SPTB < 37 weeks: ST 0.42 (0.35–0.49), SP 0.82 (0.80–0.83)
Iams (1998)881 (USA)
EL Ib
Prospective cohort, multicentre.Singleton pregnancies.
(secondary analysis of data from Goldenberg study to measure risk of recurrent SPTB – lower limit of gest. age for SPTB reduced from 20 to 18 weeks)
1282History of previous SPTB at 18–26, 27–31, and 32–36 weeks.< 35History of previous SPTB at 27–31 weeks: ST 0.33 (0.23–0.44), SP 0.88 (0.86–0.89)
History of previous SPTB at 32–36 weeks: ST 0.67 (0.56–0.77), SP 0.73 (0.70–0.76)
Kristensen (1995)882 (Denmark)
EL II
Retrospective cohort, multicentre.
(records from National Health Registers used
All women with permanent address in Denmark who gave birth to their first singleton infant in 1982 and a second in 1982–8713 967
(99.5%)
History of previous SPTB at < 37 weeks
(3.5% in study population)
< 37
(2.2% – SPTB, 3.5% all PTD)
For SPTB < 37 weeks: ST 0.19 (0.14–0.23), SP 0.97 (0.96–0.97)

From: 11, Screening for clinical problems

Cover of Antenatal Care
Antenatal Care: Routine Care for the Healthy Pregnant Woman.
NICE Clinical Guidelines, No. 62.
National Collaborating Centre for Women's and Children's Health (UK).
London: RCOG Press; 2008 Mar.
Copyright © 2008, National Collaborating Centre for Women’s and Children’s Health.

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