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Table 3 Current clinical practice - treatments for women at risk of preterm birth

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
Current clinical practice Progesterone supplementation
in multiple pregnancies
(n = 544)
Progesterone supplementation
in singleton pregnancies
(n = 544)
Cerclage
(n = 544)
   use this treatment 17 (3.2%) 51 (9.7%) 317 (62.8%)
   do not use this treatment 520 (96.8%) 476 (90.3%) 188 (37.2%)
   missing 7 17 39
For 'YES' ONLY n = 17 n = 51 n = 317
Risk factors influencing decision *    
   previous preterm delivery 17 (100.0%) 49 (96.1%) 176 (55.5%)
   hort cervix 12 (70.6%) 20 (39.6%) 190 (59.9%)
   previous surgery 6 (35.3%) 8 (15.7%) 96 (30.3%)
   previous PPROM 9 (52.9%) 24 (47.1%) 38 (12.0%)
   positive FFN test 8 (47.1%) 12 (23.5%) 8 (2.5%)
   multiple gestation not noted not noted 20 (6.3%)
   incompetent cervix not noted not noted 139 (43.8%)
Route of administration favoured * oral 4 (23.5%) 14 (27.5%) not applicable
  IM 3 (17.6%) 7 (13.7%)  
  vaginal 11 (64.7%) 37 (72.5%)  
Earliest gestational age treatment
starts
mean weeks 12 (SD 8)
range 2 to 30
missing 1
13 (SD 5)
range 4 to 24
missing 1
surgery not before:
13 (SD 2)
range 7 to 18
missing 23
Latest gestational
age treatment stops
mean weeks 27 (SD 10)
range 12 to 36
missing 1
29 (SD 8)
range 12 to 36
missing 1
surgery not after: 22 (SD 4)
range 12 to 34
missing 47
  1. Note: * respondents could check more than one risk factor and treatment type