Table 1 Population characteristics of New Hampshire birth cohort study (NHBCS) and RESONANCE participants included in any analysis [Mean ± Standard Deviation (% Missing If Any) or n (%)]
From: Prospective association of the infant gut microbiome with social behaviors in the ECHO consortium
|  | NHBCS participants (n = 212) | Resonance participants (n = 92) |
|---|---|---|
Maternal age (years) | 32.4 ± 4.2 | 31.3 ± 5.1 |
Paternal age (years) | 33.9 ± 5.8 (2.4) | 34 ± 6.3 (10.9) |
Maternal smoking during pregnancy | ||
 None | 200 (94.3) | 85 (92.4) |
 Any | 9 (4.2) | 5 (5.4) |
 Missing | 3 (1.4) | 2 (2.2) |
Maternal education | ||
 Any graduate | 93 (43.9) | 67 (72.8) |
 Less than graduate | 113 (53.3) | 25 (27.2) |
 Missing | 6 (2.8) | 0 (0) |
Marital status | ||
 Married | 188 (88.7) | 75 (81.5) |
 Unmarried | 18 (8.5) | 17 (18.5) |
 Missing | 6 (2.8) | 0 (0) |
Parity | ||
Parous | 104 (49.1) | 69 (75) |
 Nulliparous | 105 (49.5) | 23 (25) |
 Missing | 3 (1.4) | 0 (0) |
Delivery mode | ||
 Vaginal | 149 (70.3) | 63 (68.5) |
 C-section | 58 (27.4) | 28 (30.4) |
 Missing | 5 (2.4) | 1 (1.1) |
Breastfeeding at stool collection | ||
 No | 78 (36.8) | 3 (3.3) |
 Yes | 112 (52.8) | 71 (77.2) |
 Missing | 22 (10.4) | 18 (19.6) |
Peripartum antibiotics | ||
 Any | 112 (52.8) | 0 (0) |
 None | 95 (44.8) | 92 (100) |
 Missing | 5 (2.4) | 0 (0) |
 Gestational age (weeks) | 39.2 ± 1.7 | 38.5. ± 1.8 |
Child’s sex | ||
 Male | 119 (56.1) | 52 (56.5) |
 Female | 93 (43.9) | 40 (43.5) |
Child age at follow-up (years) | 3.2 ± 0.4 | 8 ± 2.7 |
Social responsiveness scale T-score | 43.6 ± 4.8 | 49.9 ± 8.5 |
Shannon Index | 1.9 ± 0.7 | 2.9 ± 0.5 |