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Table 1 Population Characteristics

From: Assessment of rewarming methods in unplanned out-of-hospital births from a prospective cohort

VariablesNormothermia at hospital admission
(>  36,4 °C) (n = 321)
Mild Hypothermia at hospital admission
(36–36,4 °C) (n = 206)
Moderate or Severe Hypothermia at hospital admission
(<  36 °C) (n = 199)
PNumber of missing or unknown data, n (%)
Delivery before medical team arrival, n (%)200 (62)140 (68)162 (81)< .0010 (0)
Place of delivery, n (%)   .0040 (0)
 Public place33 (10)12 (6)22 (11)  
 Home or private place243 (76)177 (86)166 (83)  
 Ambulance45 (14)17 (8)11 (6)  
Outside temperature, median (IQR), °C13.5 (8.5–19.6)12.4 (7.4–17.8)9.6 (5.7–14.3)< .0010 (0)
Maternal age, median (IQR), y31 (28–35)31 (27–34)31 (27–34).41 (< 1)
Weeks of gestation, median (IQR), w40 (39–41)40 (39–41)39 (39–40)< .00143 (6)
Good adaptation to extrauterine life*, n (%)313 (97)200 (97)187 (94).090 (0)
Gender male, n (%)163 (51)93 (45)85 (43).20 (0)
Weight, median (IQR), g3300 (3010–3620)3220 (2980–3480)3000 (2675–3340)< .00125 (3)
Body temperature at arrival on scene, median (IQR), °C36.5 (36.0–37.0)36.0 (35.5–36.7)35.4 (35.0–36.0)< .0010 (0)
Body temperature site at arrival on scene, n (%)   .773 (10)
 Rectal183 (57)123 (60)130 (65)  
 Axillary87 (27)47 (23)45 (23)  
 Other20 (2)12 (6)12 (6)  
Time from delivery to initial temperature, median (IQR), min18 (9–30)16 (8–29)22 (10–32).01103 (14)
Time from delivery to hospital admission, median (IQR), min45 (35–60)40 (30–55)40 (30–51).003281 (39)
Body temperature site at hospital admission, n (%)   .2194 (27)
 Rectal176 (55)115 (56)106 (53)  
 Axillary58 (18)31 (15)39 (20)  
 Other5 (2)5 (2)1 (1)  
Rewarming methods (in isolation), n (%)    9 (1)
 Skin-to-skin137 (43)87 (42)86 (43).9 
 Plastic bag188 (59)98 (48)132 (66)< .001 
 Cap301 (94)182 (88)182 (91).09 
 Incubator35 (11)22 (11)15 (7).4 
Mortality, n (%)0 (0)1 (1)0 (0).62 (< 1)
  1. IQR interquartile range
  2. * Apgar scores of 7 to 10