Table 1

Characteristics of women participating in GUI (2008, 2009), SCOPE Ireland (2008–2011) and PRAMS Ireland (2012) by their pregnancy alcohol consumption

 GUI
n=10 953
SCOPE Ireland
n=1766
PRAMS
n=718
 AlcoholAlcoholAlcohol
 Yes
n=2198
No
n=8755
p ValueYes
n=1444
No
n=322
p ValueYes
n=324
No
n=394
p Value
Age (years)
 <2019 (10)169 (90)<0.00130 (82)7 (18)0.32 (50)2 (50)0.01
 20–24130 (13)908 (87)137 (83)29 (17)4 (17)19 (83)
 25–29337 (15)1938 (85)433 (80)110 (20)53 (38)85 (62)
 30–391528 (23)5046 (77)828 (83)164 (17)248 (49)255 (51)
 >40184 (27)500 (73)16 (73)6 (27)17 (44)22 (56)
Education
 Second727 (15)4004 (85)<0.0011286 (82)279 (18)0.747 (40)72 (60)0.1
 Tertiary1470 (24)4551 (76)158 (81)37 (19)277 (47)307 (53)
Ethnicity
 Caucasian2160 (22)7868 (78)<0.0011433 (83)286 (17)<0.001316 (47)253 (53)<0.01
 Other36 (5)657 (95)11 (27)30 (73)3 (10)26 (90)
Marital status
 Married1644 (22)6021 (78)<0.0011277 (81)296 (19)<0.01306 (46)355 (54)0.4
 Single554 (18)2540 (82)167 (89)20 (11)18 (39)28 (61)
Parity
 0760 (18)3401 (82)<0.0011450 (82)318 (18)128 (46)151 (54)0.97
 1+1438 (22)5160 (78)194 (46)230 (54)
Smoking
 Yes445 (24)1386 (76)<0.001448 (92)38 (8)<0.00177 (55)63 (45)0.01
 No1753 (20)7174 (80)996 (78)279 (22)204 (43)272 (57)
BMI (kg/m2)
 <18.552 (18)232 (82)<0.001838 (81)194 (19)0.29 (36)16 (64)0.5
 18.5–24.991143 (22)4132 (78)17 (82)4 (18)220 (48)237 (52)
 25.0–29.9626 (21)2402 (79)419 (85)74 (15)69 (46)81 (54)
 >30275 (17)1376 (83)170 (79)44 (21)21 (41)31 (59)
Preterm birth
 Yes113 (16)585 (84)<0.0167 (79)18 (21)0.415 (41)22 (60)0.5
 No2081 (21)7947 (79)1377 (82)298 (18)309 (46)360 (54)
Birth weight
 <2500 g86 (15)500 (85)<0.0011384 (82)302 (18)0.814 (38)310 (62)0.3
 >/=2500 g2095 (21)7963 (79)60 (81)14 (19)23 (46)360 (54)
  • All differences tested with χ2 test for categorical variables.

  • BMI, body mass index; GUI, Growing up in Ireland; PRAMS, Pregnancy Risk Assessment Monitoring System; SCOPE, Screening for Pregnancy Endpoints.