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Table 1 Characteristics of participants and prevalence of risk factors for adverse pregnancy outcomes at baseline

From: A cohort study of a tailored web intervention for preconception care

  Participants who completed the survey (n = 282) Participants who did not complete the survey (n = 226) Total (n = 508) P
Age, yrs (SD) 32.4 (4.6) 32.5 (5.1) 32.4 (4.8) 0.832
University degree, N (%) 184 (65.2) 122 (54.0) 306 (60.2) 0.012
Employed, N (%) 251 (89.0) 175 (77.4) 426 (83.9) <0.001
Residence     
North, N (%) 125 (44.3) 88 (38.9) 213 (41.9) 0.061
Center, N (%) 114 (40.4) 85 (37.6) 199 (39.2)
South, N (%) 43 (15.2) 53 (23.5) 96 (18.9)
Planning first pregnancy, N (%) 213 (75.5) 164 (74.2) 377 (75.0) 0.734
Previous miscarriage, N (%) 16 (5.7) 33 (14.9) 49 (9.7) 0.001
Obstetrician/Gynaecologist visit in the last year, N (%) 243 (86.2) 183 (82.8) 426 (84.7) 0.298
Pap-test in the last 5 years N (%) 265 (94.0) 191 (86.4) 456 (90.7) 0.004
Family history of malformation, N (%) 31 (11.0) 32 (14.16) 63 (12.5) 0.257
Consanguinity, N (%) 5 (1.8) 9 (4.1) 14 (2.8) 0.12
Underlying diseases, N (%) 45 (16.0) 28 (12.8) 73 (14.6) 0.32
Current medicine consumption, N (%) 51 (18.1) 51 (22.9) 102 (20.2) 0.184
No Folic acid supplementation N (%) 148 (52.5) 118 (53.4) 266 (52.9) 0.839
BMI <18.5 N (%) 23 (8.2) 11 (4.9) 34 (6.7) 0.151
BMI ≥ 25 N (%) 52 (18.5) 55 (24.9) 107 (21.3) 0.083
Need of vaccination against rubella N (%) 55 (19.5) 52 (23.4) 107 (21.2) 0.285
Need of vaccination against varicella N (%) 37 (13.1) 30 (13.5) 67 (13.3) 0.913
Need of vaccination against hepatitis b N (%) 117 (41.5) 103 (46.6) 220 (43.7) 0.251
Smoking (any quantity) N (%) 37 (13.1) 48 (21.7) 85 (16.9) 0.011
Drinking alcohol (any quantity) N (%) 202 (71.6) 148 (67.0) 350 (69.6) 0.259
  1. Missing values may affect denominators of different items.