Table 1.
Characteristics of mother–child pairs in the microbiota study and in the entire Chiba Study of mother and child health cohort of participants.
| Microbiota study participants (106 pairs) | Entire cohort (434 pairs) | |
|---|---|---|
| Mother | ||
| Age (years) | 33 (23–41) | 33 (19–43) |
| Pre-pregnancy BMI (kg/m2) | 20.7 (16.0–29.3) | 20.6 (16.0–30.8) |
| Delivery mode (vaginal/cesarean) (%) | 74 (86%)/12 (14%) | 292 (86%)/46 (14%) |
| Child | ||
| Sex (male/female) (%) | 41 (43%)/54 (57%) | 196 (52%)/182 (48%) |
| Birth height (cm) | 49 (44–55) | 50 (44–55) |
| Birth weight (g) | 3034 (2132–3878) | 3068 (2132–4372) |
| 1st month’s diet (breastmilk/mixed/formula/unknown) (%) | 41 (39%)/18 (17%)/1 (1%)/46 (43%) | 138 (32%)/131 (30%)/8 (2%)/157 (36%) |
| Antibiotic use (yes/no/unknown) (%) | 40 (37%)/7 (7%)/59 (56%) | 170 (39%)/47 (11%)/217 (50%) |
*Values are shown as median (minimum–maximum) or number of participants (%).
BMI, body mass index.
1st month’s diet, Nutritional practices of children at one month of age.