Table 1 The demographic characteristics of the study group in the two case and control groups
From: Pre and perinatal predictors on autism spectrum disorders: a case-control study in the west of Iran
Variable | Case group | Control group | p-value | |
|---|---|---|---|---|
Continuous variables | ||||
Birth order | 1.53 ± 0.66 | 1.59 ± 0.79 | 0.56 | |
Neonate weight (gr) | 3.01 ± 0.59 | 3.15 ± 0.59 | 0.11 | |
Mother’s age (year) | 28.35 ± 5.5 | 28.19 ± 5.41 | 0.84 | |
Father’s age (year) | 33.35 ± 6.06 | 32.68 ± 5.1 | 0.39 | |
Categorical variables | ||||
Gender | Boy | 74 (57.81) | 54 (42.19) | 0.003 |
Girl | 26 (36.11) | 46 (63.89) | ||
Delivery type | Vaginal | 38 (52.05) | 35 (47.95) | 0.66 |
Cesarean | 62 (48.82) | 65 (51.18) | ||
Presentation | Breech | 9 (50.00) | 9 (50.00) | > 0.99 |
Cephalic | 90 (50.28) | 89 (49.72) | ||
Transverse | 1 (33.33) | 2 (66.67) | ||
Preterm | Yes | 20 (60.61) | 13 (39.39) | 0.18 |
No | 80 (47.90) | 87 (52.10) | ||
Post-term | Yes | 5 (83.33) | 1 (16.67) | 0.21 |
No | 95 (48.97) | 99 (51.03) | ||
SGA | Yes | 28 (68.29) | 13 (31.71) | 0.009 |
No | 72 (45.28) | 87 (54.72) | ||
LBW | Yes | 22 (68.75) | 10 (31.25) | 0.02 |
No | 78 (46.43) | 90 (53.57) | ||
Mother’s job | Housekeeper | 88 (55.70) | 70 (44.30) | 0.002 |
Employee | 12 (28.57) | 30 (71.43) | ||
Mother’s education | Primary (grades 1 to 5) | 19 (65.52) | 10 (34.48) | 0.11 |
Guidance (grades 6–8) | 12 (48.00) | 13 (52.00) | ||
High (grades 9–12) | 30 (55.56) | 24 (44.44) | ||
Academic (after diploma) | 38 (41.76) | 5 (58.24) | ||
Father’s education | Primary (grades 1 to 5) | 17 (70.83) | 7(29.17) | 0.04 |
Guidance (grades 6–8) | 22 (51.16) | 21 (48.84) | ||
High (grades 9–12) | 27 (56.25) | 21 (43.75) | ||
Academic (after diploma) | 34 (4.00) | 51 (60.00) | ||
Diabetes | Yes | 12 (80.00) | 3 (20.00) | 0.03 |
No | 88 (47.57) | 97 (52.43) | ||
Preeclampsia | Yes | 11 (73.33) | 4 (26.67) | 0.11 |
No | 89 (48.11) | 96 (51.89) | ||
Family history of mental disorders | Yes | 18 (66.67) | 9 (33.33) | 0.06 |