Table 2 Relationship between stressful life events/social health issues, perceived discrimination and social and obstetric characteristics No social health issues Maternal age ≤24 years ≥25 years Adjusted household income (AUD) <$20,000 $20,000- $40,000 >$40,000 Educational attainment Completed Yr 12 Did not complete Yr 12 Indigenous status Not Aboriginal and/or Torres Strait Islander Aboriginal and/or Torres Strait Islander Maternal country of birth Born in Australia Born overseas: English speaking Born overseas: non English speaking Relationship status Married Living with partner Single/divorced/separated One to two social health issues Three or more social health issues Odds Ratio (95% CI)* Never experienced discrimination Experienced discrimination No. (%) No. (%) Odds Ratio (95% CI)** No. (%) No. (%) No. (%) 84 (20.3) 1315 (34.7) 166 (40.2) 1900 (50.2) 163 (39.5) 570 (15.1) 4.48 (3.4-5.9) 1.00 ref 250 (60.7) 2853 (75.6) 162 (39.3) 923 (24.4) 2.00 (1.6-2.5) 1.00 ref 239 (25.6) 684 (35.0) 364 (37.3) 400 (42.9) 983 (50.3) 524 (53.7) 296 (31.7) 287 (14.7) 88 (9.0) 2.95 (2.4-3.7) 1.00 ref 0.58 (0.4-0.8) 619 (66.5) 1463 (74.9) 764 (78.0) 312 (33.5) 490 (25.1) 215 (22.0) 1.50 (1.3-1.8) 1.00 ref 0.84 (0.7-1.0) 1152 (33.7) 272 (30.6) 1739 (50.9) 390 (43.8) 529 (15.5) 228 (25.6) 1.00 ref 1.83 (1.5-2.3) 2556 (74.9) 617 (69.6) 856 (25.1) 270 (30.4) 1.00 ref 1.31 (1.1-1.5) 1328 (33.2) 1999 (50.1) 713 (16.7) 100 ref 2968 (73.6) 1067 (26.4) 8 (25.8) 11 (35.5) 12 (38.7) 21 (67.7) 10 (32.3) 1165 (33.2) 1716 (48.8) 633 (18.0) 2604 (74.2) 906 (25.8) 82 (30.5) 149 (55.4) 38 (14.1) 0.85 (0.5-1.3) 195 (72.0) 76 (28.0) 1.12 (0.8-1.5) 178 (34.0) 258 (49.3) 87 (16.6) 0.90 (0.7-1.2) 381 (73.1) 140 (26.9) 1.06 (0.8-1.3) 1181 (35.7) 236 (28.3) 20 (10.4) 1696 (51.2) 379 (46.8) 61 (38.5) 437 (12.2) 219 (26.3) 111 (57.8) 1.00 ref 2.51 (2.0-3.1) 15.0 (9.2-24.4) 2511 (76.3) 555 (66.9) 119 (62.6) 779 (23.7) 274 (33.1) 71 (37.4) 1.00 ref 1.59 (1.3-1.9) 1.92 (1.4-2.6) 2.79 (1.1-6.9) 1.00 ref 1.00 ref 1.32 (0.6-2.8) 1.00 ref Maternal pre-pregnant BMI Underweight (<18.5) Normal weight (18.524.9) Overweight (25-29.9) Obese (≥30) 46 (25.3) 91 (50.0) 45 (24.7) 2.08 (1.4-3.2) 121 (68.0) 1802 (75.5) 57 (32.0) 586 (24.5) 1.44 (1.0-2.0) 1.00 ref 814 (34.0) 308 (34.0) 184 (31.6) 1197 (50.0) 435 (48.1) 284 (48.7) 382 (16.0) 162 (17.9) 115 (19.7) 1.00 ref 1.12 (0.9-1.4) 1.33 (1.0-1.7) 669 (74.0) 412 (71.0) 235 (26.0) 168 (29.0) 1.08 (0.9-1.3) 1.25 (1.0-1.5) 1232 (35.1) 95 (27.1) 1760 (50.2) 169 (48.2) 514 (14.7) 87 (24.8) 1.00 ref 2.20 (1.6-3.0) 2623 (75.2) 248 (71.5) 864 (24.8) 99 (28.5) 1.00 ref 1.21 (0.9-1.5) 86 (21.5) 162 (40.5) 152 (38.0) 4.24 (3.2-5.6) 245 (62.0) 150 (38.0) 1.86 (1.5-2.3) Medical risk Lower risk Higher risk 960 (36.3) 480 (28.2) 1295 (48.9) 849 (49.8) 392 (14.8) 376 (22.1) 1.00 ref 1.92 (1.6-2.3) 2008 (76.3) 1184 (70.0) 624 (23.7) 508 (30.0) 1.00ref 1.38 (1.2-1.6) Gestation ≥37 weeks <37 weeks 1333 (33.7) 79 (28.3) 1939 (49.0) 146 (52.3) 686 (17.33) 54 (19.4) 1.00 ref 1.32 (0.9-1.9) 2913 (74.1) 198 (71.2) 1020 (25.9) 80 (28.8) 1.00 ref 1.15 (0.9-1.5) Infant birthweight ≥2500 grams <2500 grams 1332 (33.6) 44 (24.7) 1954 (49.3) 88 (49.4) 676 (17.1) 46 (25.8) 1.00 ref 2.06 (1.3-3.1) 2903 (73.8) 121 (68.0) 1032 (26.2) 57 (32.0) 1.00 ref 1.32 (1.0-1.8) Smoking during pregnancy Non-smoker Quit in pregnancy Smoking throughout pregnancy * Odds ratios in this column refer to comparisons between women who experienced ≥2 stressful life events with those who experienced no events ** Odds ratios in the last column refer to comparisons between women who experienced discrimination with those reporting no discrimination.