Table 1 Infants’ characteristics at birth, at nursery entry and potential risk factors for hypothermia in the 2016 and 2017 cohorts. Statistical significance was defined as p < 0.05
Survey 2016 N = 2376 | Survey 2017 N = 2346 | p-value | |
|---|---|---|---|
Infants’ characteristics at birth | |||
Gestational age (weeks) | |||
Infants with available data | 2369 | 2307 | |
median (range) | 39.3 (33.3–42.0) | 39.3 (34.0–42.0) | 0.41 |
Birth weight (g) | |||
Infants with available data | 2369 | 2346 | |
median (range) | 3290 (1900–5000) | 3290 (1780–5130) | 0.53 |
Gender (male) | |||
Infants with available data | 2376 | 2346 | |
N (%) | 1230 (51.8%) | 1226 (52.3) | 0.75 |
Infants’ characteristics at nursery entry | |||
Neonatal hypothermia (< 36.5 °C) | |||
Infants with available data | 2376 | 2346 | |
N (%) | 1415 (59.6) | 1135 (48.4) | < 0.0001 |
Temperature at nursey entry | |||
Infants with available data | 2376 | 2346 | |
median (range) | 36.3 (34.2–37.7) | 36.5 (34.0–38.1) | < 0.0001 |
Heart rate at nursery entry | |||
Infants with available data | 1983 | 1871 | |
median (range) | 133 (80–186) | 134 (85–199) | 0.13 |
SpO2 at nursery entry | |||
Infants with available data | 1984 | 2006 | |
median (range) | 99 (85–100) | 99 (80–146) | 0.09 |
Risk factors for infants’ hypothermia | |||
Vaginal delivery | |||
Infants with available data | 2375 | 2344 | |
N (%) | 1820 (76.6) | 1802 (76.9) | 0.86 |
Maternal analgesia administration | |||
Infants with available data | 2340 | 2320 | |
N (%) | 963 (41.2) | 846 (36.5) | 0.001 |
Delayed cord clamping (> 60″) | |||
Infants with available data | 2277 | 2127 | |
N (%) | 1094 (48.1) | 1469 (69.1) | < 0.0001 |
Skin to skin contact | |||
Infants with available data | 2369 | 2345 | |
N (%) | 1610 (68.0) | 1523 (64.9) | 0.03 |
Duration of skin to skin > 60′ | |||
Infants with available data | 1610 | 1523 | |
N (%) | 907 (56.3) | 927 (60.9) | 0.03 |
Bathing after birth (before temperature recording) | |||
Infants with available data | 2314 | 2346 | |
N (%) | 1123 (48.5) | 1347 (57.4) | < 0.0001 |
Maternal temperature | |||
Infants with available data | – | 2160 | |
median (range) | – | 36.5 (34.7–39.1) | – |
Room temperature | |||
Infants with available data | – | 1716 | |
median (range) | – | 24.5 (19.0–30.0) | – |