Table 1. Characteristics of the population before and after the implementation of the Koala Project.
| Group | p-value | ||
|---|---|---|---|
| Before | After | ||
| Hospital n (%) | |||
| 1 | 24 (41.4) | 21 (50) | 0.421F |
| 2 | 34 (58.6) | 21 (50) | |
| Sex n (%) | |||
| Female | 21 (36.2) | 23 (54.8) | 0.071F |
| Male | 37 (63.8) | 19 (45.2) | |
| Gestational age (weeks) - median (IQR) | 33 (31-35) | 32 (30-33) | 0.108M |
| Gestational age (weeks) - n (%) | |||
| <28 | 4 (6.9) | 6 (14.3) | 0.137Q |
| 28–31 | 18 (31) | 12 (28.6) | |
| 32–33 | 13 (22.4) | 15 (35.7) | |
| 34–36 | 23 (39.7) | 9 (21.4) | |
| Types of delivery - n (%) | |||
| Vaginal | 29 (50) | 20 (47.6) | 0.842F |
| C-Section | 29 (50) | 22 (52.4) | |
| Maternal urinary infection - n (%) | 12 (20.7) | 7 (18.9) | 1.000F |
| Chorioamnionitis - n (%) | 5 (8.6) | 0 (0) | 0.075F |
| Rupture of membranes - n (%) | 12 (20.7) | 7 (17.1) | 0.797F |
| Diabetes mellitus - n (%) | 1 (1.7) | 0 (0) | 1.000F |
| Gestational diabetes - n (%) | 3 (5.2) | 1 (2.4) | 0.640F |
| Gestational hypertension - n (%) | 9 (15.5) | 7 (17.1) | 1.000F |
| HEELP syndrome - n (%) | 2 (3.4) | 2 (4.9) | 1.000F |
| Preeclampsia - n (%) | 4 (6.9) | 0 (0) | 0.140F |
| Septic shock. - n (%) | 9 (15.5) | 5 (11.9) | 0.772F |
| Respiratory distress syndrome - n (%) | 28 (48.3) | 29 (74.4) | 0.012F |
| Pneumonia - n (%) | 4 (6.9) | 3 (7.1) | 1.000F |
| Transient tachypnea of newborn - n (%) | 21 (36.2) | 11 (26.2) | 0.386F |
| Bronchopneumonia - n (%) | 9 (15.5) | 1 (2.4) | 0.042F |
| Early neonatal infection - n (%) | 40 (69) | 31 (73.8) | 0.660F |
| Early onset sepsis - n (%) | 9 (15.5) | 20 (47.6) | 0.001F |
| Late onset sepsis - n (%) | 2 (3.4) | 4 (9.5) | 0.235F |
| Neonatal jaundice - n (%) | 45 (77.6) | 31 (73.8) | 0.813F |
| COVID 19 - n (%) | 1 (1.7) | 5 (12.2) | 0.079F |
| % of SpO2 records | |||
| <91% - median (IIQ) | 1.9 (0–4.5) | 4 (1.5–9.7) | 0.008M |
| >95% - median (IIQ) | 83.3 (70.4–93.5) | 73.1 (56.2–87) | 0.008M |
| <91% and SpO2>95% - median (IIQ) | 87 (73.9–94.4) | 76.6 (65.7–88.5) | 0.010M |
| 91% ≤SpO2 ≤95% - median (IIQ) | 13 (5.6–26.1) | 23.4 (11.5–34.3) | 0.010M |
n: absolute frequency; %: relative frequency percentage; IQR: Interquartile Range; F: Fisher Exact Test; M: Mann-Whitney Test; Q: Pearson’s Chi-Square Test; SpO2: pulse oximeter oxygen saturation.