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. 2017 Jan 31;17:49. doi: 10.1186/s12884-017-1221-z

Table 2.

Comparison of the characteristics between women who preferred no prevention vs women who preferred at least one prevention

Variablesa Preferred no preventionb, (n = 198) Preferred preventionc (n = 103) p-value for differenced
Pregnant Women’s Characteristics
 Age (years), mean ± SD 30.7 (5.6) 31.0 (5.1) 0.64
 European or White-Caucasian ethnicity (self-reported) 167 (85.6) 90 (88.2) 0.59
 Post-secondary education 164 (82.8) 90 (87.4) 0.32
 Married or in common-law relationship 185 (93.9) 99 (96.1) 0.59
 Current Smokers 14 (7.1) 8 (7.8) 0.82
Primary Healthcare Provider
 Obstetrician 87 (43.9) 49 (47.1) 0.42
 Family physician 62 (31.3) 37 (35.6)
 Midwife 40 (20.2) 13 (12.5)
 Otherse 9 (4.6) 5 (4.8)
Obstetric History
 Prior full-term birth 95 (79.8) 51 (76.1) 0.58
 Prior preterm birth 14 (11.8) 11 (16.2) 0.50
 Prior use of preterm birth prevention 2 (14.3) 1 (9.1) 1.00
 Received progesterone 0 (0.0) 1 (50.0) 1.00
 Advised to rest in bed (bedrest) 1 (100.0) 1 (50.0) 1.00
Current Pregnancy Characteristics
 Gestational age at point of survey completion (weeks), mean ± SDf 31.0 (7.6) 29.6 (7.5) 0.12
 At increased risk for preterm birth 12 (6.1) 1 (1.0) 0.04
Preterm Birth Prevention Preferences
 Preferred no close-monitoring nor prevention 13 (6.6)
 Preferred close-monitoring only 185 (93.4)
 Preferred close-monitoring and prevention 15 (14.6)
 Preferred progesterone only 13 (86.7)
 Preferred cerclage only 1 (6.7)
 Preferred all 3 preventions 1 (6.7)
Preferred preterm birth prevention only 88 (85.4)
 Selected 1 prevention only 53 (60.2)
 Progesterone only 45 (84.9)
 Cerclage only 5 (9.4)
 Pessary only 3 (5.7)
 Selected 2 preventions 18 (20.4)
 Progesterone + Cerclage 8 (44.4)
 Progesterone + Pessary 9 (50.0)
 Cerclage + Pessary 1 (5.6)
 Selected all 3 preventions 25 (24.3)

aData is expressed as n (%) unless otherwise specified

b“Preferred no prevention” included women who preferred no prevention, close-monitoring only, or were not using a prevention if they were at increased risk for preterm birth

c“Preferred prevention” included women who preferred a prevention, close-monitoring and a prevention, or were using a prevention if they were at increased risk for preterm birth

dSignificance was assessed using independent t-test for continuous variables and chi-squared test or Fisher’s exact test for categorical variables;

eOthers included Maternal-Foetal Medicine Specialists, Nurses, and Fertility Specialists

fMann-Whitney-Wilcoxon test was used to test for significance