Table 1 Population Characteristics
From: Assessment of rewarming methods in unplanned out-of-hospital births from a prospective cohort
Variables | Normothermia 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) | P | Number of missing or unknown data, n (%) |
|---|---|---|---|---|---|
Delivery before medical team arrival, n (%) | 200 (62) | 140 (68) | 162 (81) | < .001 | 0 (0) |
Place of delivery, n (%) | .004 | 0 (0) | |||
Public place | 33 (10) | 12 (6) | 22 (11) | ||
Home or private place | 243 (76) | 177 (86) | 166 (83) | ||
Ambulance | 45 (14) | 17 (8) | 11 (6) | ||
Outside temperature, median (IQR), °C | 13.5 (8.5–19.6) | 12.4 (7.4–17.8) | 9.6 (5.7–14.3) | < .001 | 0 (0) |
Maternal age, median (IQR), y | 31 (28–35) | 31 (27–34) | 31 (27–34) | .4 | 1 (< 1) |
Weeks of gestation, median (IQR), w | 40 (39–41) | 40 (39–41) | 39 (39–40) | < .001 | 43 (6) |
Good adaptation to extrauterine life*, n (%) | 313 (97) | 200 (97) | 187 (94) | .09 | 0 (0) |
Gender male, n (%) | 163 (51) | 93 (45) | 85 (43) | .2 | 0 (0) |
Weight, median (IQR), g | 3300 (3010–3620) | 3220 (2980–3480) | 3000 (2675–3340) | < .001 | 25 (3) |
Body temperature at arrival on scene, median (IQR), °C | 36.5 (36.0–37.0) | 36.0 (35.5–36.7) | 35.4 (35.0–36.0) | < .001 | 0 (0) |
Body temperature site at arrival on scene, n (%) | .7 | 73 (10) | |||
Rectal | 183 (57) | 123 (60) | 130 (65) | ||
Axillary | 87 (27) | 47 (23) | 45 (23) | ||
Other | 20 (2) | 12 (6) | 12 (6) | ||
Time from delivery to initial temperature, median (IQR), min | 18 (9–30) | 16 (8–29) | 22 (10–32) | .01 | 103 (14) |
Time from delivery to hospital admission, median (IQR), min | 45 (35–60) | 40 (30–55) | 40 (30–51) | .003 | 281 (39) |
Body temperature site at hospital admission, n (%) | .2 | 194 (27) | |||
Rectal | 176 (55) | 115 (56) | 106 (53) | ||
Axillary | 58 (18) | 31 (15) | 39 (20) | ||
Other | 5 (2) | 5 (2) | 1 (1) | ||
Rewarming methods (in isolation), n (%) | 9 (1) | ||||
Skin-to-skin | 137 (43) | 87 (42) | 86 (43) | .9 | |
Plastic bag | 188 (59) | 98 (48) | 132 (66) | < .001 | |
Cap | 301 (94) | 182 (88) | 182 (91) | .09 | |
Incubator | 35 (11) | 22 (11) | 15 (7) | .4 | |
Mortality, n (%) | 0 (0) | 1 (1) | 0 (0) | .6 | 2 (< 1) |