- General characteristics of the population.
| Variable | n (%) |
|---|---|
| Gender | |
| Male | 74 (54.0) |
| Female | 62 (46.0) |
| Gestational age | |
| Late preterm (32-37 WG) | 121 (89.0) |
| Early preterm (28-31.6 WG) | 10 (7.4) |
| Extremely premature (<28 WG) | 5 (3.6) |
| Birth weight | |
| Suitable (>2.5 kg) | 32 (23.5) |
| Low (1.5-2.49 kg) | 87 (64.0) |
| Very low (1-1.49 kg) | 11 (8.0) |
| Extremely low (<1 kg) | 6 (4.5) |
| Apgar value (median±IR) | |
| At 1 minute | 8±0.1 |
| At minute 5 | 9±0.1 |
| Route of delivery | |
| Vaginal birth | 38 (28.0) |
| Caesarean section | 98 (72.0) |
| Maternal education | |
| Primary school | 34 (25.0) |
| Middle school | 73 (53.6) |
| High school | 19 (14.0) |
| Bachelor’s degree | 10 (7.4) |
| Maternal age (median±IR) | 26.5±3 |
| Days of hospital stay (median±IR) | 10±2 |
| Mothers with a history of CDD | 11 (8.0) |
| Mothers with OGRF | 13 (9.5) |
| PNB with respiratory diseases | 115 (84.5) |
| PNB with infectious diseases | 74 (54.4) |
WG: weeks of gestation, IR: interquartile range, CDD: chronic degenerative disease, OGRF: obstetrics and gynecological risk factors (namely, previous abortion, history of preterm delivery, threatened miscarriage, and threatened preterm labor), PNB: premature newborn