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Table 2 Odds ratios and 95 % confidence intervals from bivariable and multivariable logistic regression analyses predicting GWG information seeking

From: Gestational weight gain information: seeking and sources among pregnant women

n = 368 Sought GWG information Bivariable associationsa Multivariable associationsa,b
  No (n/%) Yes (n/%) OR 95 % CI p OR 95 % CI p
Total 166 202       
Maternal age         
 ≤30 years 65 (39.2) 97 (48.0) 1.00 Ref   1.00 Ref  
 31–35 years 62 (37.3) 57 (28.2) 0.62 0.38, 0.99 0.05 1.15 0.64, 2.07 0.63
 ≥36 years 39 (23.5) 48 (23.8) 0.83 0.45, 1.4 0.47 1.45 0.76, 2.77 0.26
Country of birth         
 Australia 110 (66.3) 120 (59.4) 1.00 Ref     
 Overseas 56 (33.7) 82 (40.6) 1.35 0.88, 2.05 0.18    
Language         
 English 114 (68.7) 130 (64.4) 1.00 Ref     
 LOTE 52 (31.3) 72 (35.6) 1.21 0.78, 1.88 0.87    
Education         
 Secondary or less 22 (13.3) 18 (8.9) 1.00 Ref     
 Trade/Certificate/Diploma 50 (30.1) 51 (25.2) 1.25 0.60, 2.60 0.56    
 Tertiary 94 (56.6) 133 (65.9) 1.73 0.88, 3.40 0.11    
Main daily activity         
 Working full time 39 (23.5) 98 (48.5) 2.89 1.65, 5.00 <0.01 0.79 0.39, 1.60 0.52
 Working part time 68 (41.0) 50 (24.8) 0.84 (p < 0.001) 0.48, 1.45 0.53 0.52 0.28, 0.97 0.04
 Raising children 49 (29.5) 43 (21.3) 1.00 Ref   1.00 Ref  
 Unemployed/studying 10 (6.0) 11 (5.4) 1.25 0.49, 3.24 0.64 0.40 0.13, 1.24 0.11
Household income         
 <$51,999 37 (22.3) 35 (17.3) 1.00 Ref   1.00 Ref  
 $52–77,999 34 (20.5) 30 (14.9) 0.98 0.52, 1.83 0.84 0.86 0.40, 1.85 0.71
 $78–99,999 37(22.3) 35 (17.3) 1.00 0.52, 1.91 1.00 1.09 0.51, 2.31 0.83
 >$99,999 37(22.3) 72 (35.6) 2.01 1.11, 3.78 0.02 1.96 0.96, 4.01 0.07
 Did not answer 21(12.6) 30 (14.9) 1.51 0.73, 3.12 0.27 1.57 0.69, 3.55 0.28
Parity         
 0 41 (24.7) 132 (65.3) 5.78 3.64, 9.08 <0.01 7.07 3.91, 12.81 <0.01
 ≥1 125 (75.3) 70 (34.7) 1.00 Ref   1.00 Ref  
BMI kg/m2         
 Underweight (<18.5 kg/m2) 13 (7.8) 5 (2.5) 0.32 0.11, 0.92 0.04 0.29 0.09, 0.97 0.04
 Healthy weight (18.5–24.9 kg/m2) 99 (59.6) 120 (59.4) 1.00 Ref   1.00 Ref  
 Overweight (25–29.9 kg/m2) 37 (22.3) 38 (18.8) 0.85 0.50, 1.43 0.54 1.02 0.56, 1.87 0.94
 Obese (30–34.9 kg/m2) 17 (10.2) 39 (19.3) 1.89 1.01, 3.55 0.05 2.61 1.23, 5.33 0.01
  1. Ref., reference category; LOTE, language other than English
  2. a Analysis adjusted for access to technology
  3. b Characteristics significantly (p ≤ 0.05) associated with outcome in bivariable analysis were included in multivariable analyses