Agreement between questionnaire and databasea | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
At least 1 (N = 266) | None (N = 375) | Univariate | Multivariatea | Multivariateb | |||||||
n | % | n | % | Odds Ratio | 95 % CIb | Odds Ratio | 95 % CIb | Odds Ratio | 95 % CIb | ||
Age at delivery (years) | |||||||||||
<25 | 20 | 7.6 | 18 | 4.8 | 1.71 | 0.87; 3.39 | 2.25 | 1.06; 4.79 | 2.11 | 0.90; 4.93 | |
25-29 | 27 | 10.1 | 61 | 16.3 | 0.68 | 0.41; 1.14 | 0.67 | 0.39; 1.14 | 0.57 | 0.31; 1.04 | |
30-34c | 110 | 41.3 | 170 | 45.3 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
35-39 | 81 | 30.4 | 106 | 28.3 | 1.18 | 0.81; 1.72 | 1.33 | 0.90; 1.97 | 0.97 | 0.62; 1.52 | |
40+ | 28 | 10.6 | 20 | 5.3 | 2.16 | 1.16; 4.03 | 2.25 | 1.19; 4.26 | 2.34 | 1.15; 4.76 | |
Country of origina | |||||||||||
Italyc | 245 | 92.1 | 341 | 90.9 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
Other | 19 | 7.1 | 30 | 8.0 | 0.88 | 0.48; 1.60 | 0.88 | 0.46; 1.67 | 0.83 | 0.30; 1.63 | |
Level of education | |||||||||||
< High school | 39 | 14.7 | 71 | 19.0 | 0.59 | 0.37; 0.95 | 0.64 | 0.38; 1.08 | 0.64 | 0.35; 1.19 | |
High school | 118 | 44.4 | 186 | 49.7 | 0.69 | 0.48; 0.97 | 0.75 | 0.53; 1.09 | 0.89 | 0.59; 1.35 | |
Universityc | 108 | 40.6 | 117 | 31.3 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
Smoking statusa | |||||||||||
Ex-smoker, having quit during or after pregnancy | 17 | 6.4 | 41 | 10.9 | 0.50 | 0.27; 0.91 | 0.48 | 0.26; 0.90 | 0.61 | 0.30; 1.24 | |
Ex-smoker, having quit before pregnancy | 56 | 21.2 | 80 | 21.3 | 0.85 | 0.57; 1.26 | 0.85 | 0.56; 1.29 | 0.91 | 0.57; 1.45 | |
Current smoker | 19 | 7.2 | 40 | 10.7 | 0.57 | 0.32; 1.03 | 0.66 | 0.36; 1.21 | 0.78 | 0.39; 1.56 | |
Never smokerc | 172 | 65.1 | 208 | 55.5 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
Prior pregnancies | |||||||||||
None | 138 | 51.9 | 165 | 44.0 | 1.37 | 1.00; 1.88 | 1.50 | 1.07; 2.11 | 1.52 | 1.03; 2.24 | |
At least onec | 128 | 48.1 | 210 | 56.0 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
Comorbidities during pregnancyd | |||||||||||
At least one | 202 | 75.9 | 286 | 76.3 | 1.79 | 1.25; 2.55 | 1.55 | 1.01; 2.37 | 1.10 | 0.66; 1.81 | |
Nonec | 61 | 22.9 | 89 | 23.7 | 1.00 | - - | 1.00 | - - | 1.00 | - - | |
Number of medications reported in questionnaire | |||||||||||
0 | 78 | 29.3 | 269 | 71.7 | 0.26 | 0.17; 0.39 | - - | - - | 0.26 | 0.17; 0.41 | |
1c | 80 | 30.1 | 72 | 19.2 | 1.00 | - - | - - | - - | 1.00 | - - | |
2 | 65 | 24.4 | 23 | 6.1 | 2.54 | 1.43; 4.51 | - - | - - | 2.53 | 1.39; 4.59 | |
3 or more | 43 | 16.2 | 11 | 2.9 | 3.52 | 1.69; 7.34 | - - | - - | 3.81 | 1.74; 8.34 | |
Marital status | |||||||||||
Marriedc | 242 | 91.0 | 332 | 88.5 | 1.00 | - - | - - | - - | - - | - - | |
Single | 23 | 8.6 | 38 | 10.1 | 0.83 | 0.48; 1.43 | - - | - - | - - | - - | |
Time of questionnaire completion | |||||||||||
Pre-delivery | 127 | 47.7 | 204 | 54.4 | 0.77 | 0.56; 1.05 | - - | - - | - - | - - | |
Post-deliveryc | 139 | 52.3 | 171 | 45.6 | 1.00 | - - | - - | - - | - - | - - | |
Prenatal care visits (number) | |||||||||||
<7 | 47 | 17.7 | 75 | 20.0 | 0.89 | 0.54; 1.47 | - - | - - | - - | - - | |
7 | 41 | 15.4 | 57 | 15.2 | 0.96 | 0.60; 1.52 | - - | - - | - - | - - | |
8 | 52 | 19.5 | 75 | 20.0 | 0.92 | 0.61; 1.41 | - - | - - | - - | - - | |
9 + c | 126 | 47.4 | 168 | 44.8 | 1.00 | - - | - - | - - | - - | - - | |
Ultrasound imaging during pregnancy (number) | |||||||||||
<4 | 66 | 24.8 | 98 | 26.1 | 0.87 | 0.56; 1.33 | - - | - - | - - | - - | |
4 | 50 | 18.8 | 60 | 16.0 | 1.07 | 0.66; 1.73 | - - | - - | - - | - - | |
5-7 | 73 | 27.5 | 118 | 31.5 | 0.79 | 0.52; 1.21 | - - | - - | - - | - - | |
8 + c | 77 | 28.9 | 99 | 26.4 | 1.00 | - - | - - | - - | - - | - - |