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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Bipolar Disord. 2013 Oct 24;16(3):308–317. doi: 10.1111/bdi.12129

Table 3.

Parameter estimates and probability values from models of birth outcomesa

Parameter Pre-term birth Birth weight (g) Peripartum events scale Peripartum events scale ≥ 1 Peripartum events scale ≥ 2
OR 95% CI p-value β 95% CI p-value β 95% CI p-value OR 95% CI p-value OR 95% CI p-value
GCT, unadjusted 0.986 0.826–1.176 0.8715 19.6 -16.2 to 55.4 0.2839 0.084 -0.004 to 0.172 0.0610 1.017 0.893–1.158 0.7993 1.150 0.932–1.419 0.1938
GCT, adjustedb 1.290 1.001–1.661 0.0488 -28.5 -68.3 to 11.3 0.1608 0.107 0.004–0.210 0.0420 1.040 0.884–1.223 0.6355 1.250 0.931–1.680 0.1382
GCTa diagnosis, unadjusted 0.2424 0.3566 0.1330 0.4735 0.4389
 Healthy control 0.785 0.452–1.361 0.3879 32.8 -34.9 to 100 0.3429 0.089 -0.099 to 0.278 0.3529 1.034 0.801–1.336 0.7965 1.196 0.741–1.929 0.4642
 Bipolar disorder 0.817 0.537–2.020 0.9048 33.6 -91.3 to 93.1 0.9854 -0.181 -0.594 to 0.053 0.1006 0.805 0.509–1.189 0.2463 0.811 0.327–1.410 0.2987
 Prior MDD 1.295 0.854–3.192 0.1363 -47.2 -185 to 25.1 0.1359 0.140 -0.195 to 0.296 0.6851 1.073 0.714–1.507 0.8487 1.280 0.580–1.979 0.8266
 Current MDD 1.018 0.684–2.460 0.4260 38.3 -91.8 to 103 0.9118 0.135 -0.210 to 0.300 0.7287 1.080 0.728–1.497 0.8157 1.344 0.568–2.227 0.7362
GCTa diagnosis, adjustedb 0.3248 0.3530 0.2498 0.6144 0.3342
 Healthy control 1.021 0.577–1.805 0.9434 -3.2 -71.2 to 64.7 0.9259 0.121 -0.086 to 0.327 0.2513 1.004 0.751–1.343 0.9787 1.529 0.893–2.617 0.1218
 Bipolar disorder 1.025 0.486–2.072 0.9922 -16.7 -108 to 80.8 0.7796 -0.181 -0.703 to 0.100 0.1406 0.839 0.506–1.379 0.4820 0.543 0.085–1.491 0.1574
 Prior MDD 1.714 0.829–3.401 0.1502 -90.7 -190 to 15.3 0.0953 0.177 -0.204 to 0.316 0.6733 1.135 0.752–1.700 0.5555 1.351 0.442–1.765 0.7261
 Current MDD 1.261 0.622–2.453 0.5457 -13.1 -106 to 86.7 0.8415 0.088 -0.313 to 0.247 0.8167 1.096 0.734–1.623 0.6656 1.048 0.293–1.604 0.3840

OR = odds ratio; CI = confidence interval; GCT = glucose challenge test; MDD = major depressive disorder.

a

GCT modeled in increments of 10.

b

Adjusted for age, education, employment, marital status, pre-pregnancy body mass index, tobacco, illicit drug use, psychiatric and, metabolism-changing medications.