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Table 2 Prolongation of pregnancy required to introduce new treatment into practice

From: Is it possible to estimate the minimal clinically important treatment effect needed to change practice in preterm birth prevention? Results of an obstetrician survey used to support the design of a trial

  Treatment used in clinical practice
Prolongation of
pregnancy
required to
change practice
Progesterone PV in
multiples
(n = 544)
Progesterone IM in
singletons
(n = 544)
Cerclage
(n = 544)
1 week 165 (31.5%) 138 (26.5%) 62 (11.9%)
2 weeks 207 (39.6%) 216 (41.5%) 131 (25.2%)
3 weeks 151 (28.9%) 167 (32.1%) 326 (62.8%)
Missing 21 23 25