Adjusted OR for developmental delay of offspring for multimorbidity during pregnancy by logistic regression
| Age | Number of maternal comorbidity | Communication | Gross motor | Fine motor | Problem-solving | Personal–social |
| Adjusted OR (95% CI) | Adjusted OR (95% CI) | Adjusted OR (95% CI) | Adjusted OR (95% CI) | Adjusted OR (95% CI) | ||
| 6 months | 1 | 0.85 (0.69 to 1.05) | 1.03 (0.98 to 1.08) | 0.99 (0.92 to 1.06) | 1.01 (0.96 to 1.06) | 1.02 (0.94 to 1.11) |
| ≥2 | 1.14 (0.71 to 1.81) | 1.08 (0.96 to 1.22) | 0.95 (0.8 to 1.14) | 0.98 (0.86 to 1.11) | 0.99 (0.8 to 1.21) | |
| 1 year | 1 | 1.28 (0.82 to 1.99) | 1.09 (1.02 to 1.16) | 1.10 (1.03 to 1.18) | 1.08 (1.01 to 1.16) | 1.08 (0.94 to 1.25) |
| ≥2 | 2.29 (0.98 to 5.36) | 1.08 (0.91 to 1.28) | 1.05 (0.89 to 1.24) | 1.32 (1.12 to 1.55) | 1.90 (1.44 to 2.50) | |
| 1 half years | 1 | 1.04 (0.94 to 1.16) | 1.13 (1.05 to 1.22) | 1.05 (0.97 to 1.14) | 1.12 (1.04 to 1.22) | 1.02 (0.92 to 1.13) |
| ≥2 | 1.29 (1.02 to 1.64) | 1.34 (1.13 to 1.59) | 1.42 (1.20 to 1.68) | 1.31 (1.09 to 1.57) | 1.23 (0.97 to 1.56) | |
| 2 years | 1 | 1.21 (1.12 to 1.30) | 1.15 (1.08 to 1.23) | 1.19 (1.08 to 1.32) | 1.04 (0.96 to 1.12) | 1.09 (0.99 to 1.19) |
| ≥2 | 1.42 (1.19 to 1.69) | 1.21 (1.03 to 1.41) | 1.42 (1.13 to 1.78) | 1.09 (0.9 to 1.32) | 1.31 (1.06 to 1.61) | |
| 2 half years | 1 | 1.19 (1.11 to 1.27) | 1.17 (1.09 to 1.26) | 1.11 (1.04 to 1.19) | 1.14 (1.07 to 1.22) | 1.14 (1.04 to 1.24) |
| ≥2 | 1.42 (1.22 to 1.65) | 1.26 (1.05 to 1.51) | 1.28 (1.09 to 1.49) | 1.23 (1.05 to 1.44) | 1.26 (1.04 to 1.54) | |
| 3 years | 1 | 1.14 (1.05 to 1.23) | 1.19 (1.10 to 1.28) | 1.13 (1.06 to 1.19) | 1.12 (1.06 to 1.19) | 1.13 (1.04 to 1.24) |
| ≥2 | 1.48 (1.25 to 1.75) | 1.37 (1.15 to 1.63) | 1.26 (1.10 to 1.45) | 1.39 (1.22 to 1.59) | 1.33 (1.10 to 1.61) | |
| 3 half years | 1 | 1.04 (0.98 to 1.11) | 1.18 (1.10 to 1.28) | 1.12 (1.04 to 1.20) | 1.19 (1.11 to 1.27) | 1.18 (1.09 to 1.27) |
| ≥2 | 1.24 (1.07 to 1.44) | 1.46 (1.23 to 1.73) | 1.26 (1.07 to 1.47) | 1.42 (1.22 to 1.64) | 1.30 (1.09 to 1.54) | |
| 4 years | 1 | 1.10 (1.02 to 1.18) | 1.13 (1.06 to 1.21) | 1.15 (1.08 to 1.22) | 1.18 (1.08 to 1.27) | 1.11 (1.03 to 1.18) |
| ≥2 | 1.35 (1.14 to 1.59) | 1.30 (1.11 to 1.52) | 1.37 (1.19 to 1.58) | 1.42 (1.19 to 1.69) | 1.32 (1.14 to 1.54) |
Models were adjusted for maternal age at birth, parity, history of alcohol consumption, history of smoking, maternal educational attainment, sex of child, household income and sex of child.