Table 1 Maternal and infant characteristics for each group
|  | Happiness group (n = 10) | Sadness group (n = 14) | Total (n = 24) |
|---|---|---|---|
Pregnant mother | |||
 Age (years) | 30.9 (6.7) | 30.3 (4.9) | 30.6 (5.9) |
 Primiparae/multiparae | 5/5 | 7/7 | 12/12 |
 Gestational age (weeks) | 32.5 (3.4) | 31.2 (3.8) | 31.7 (3.6) |
Infant | |||
 Sex | |||
  Male | 7 | 5 | 12 |
  Female | 3 | 9 | 12 |
 Birth weight (g) | 3,162 (225) | 3,036 (501) | 3,076 (430) |
 Gestational age at delivery (weeks) | 39.8 (1.4) | 39.1 (1.0) | 39.3 (3.6) |
 Apgar score (1 min) | 8.8 (0.4) | 8.5 (0.8) | 8.6 (0.7) |
 Apgar score (5 min) | 9.0 (0) | 8.9 (4.5) | 8.9 (0.4) |