. Author manuscript; available in PMC: 2015 Aug 23.

Published in final edited form as: Arch Pediatr Adolesc Med. 2010 Jan;164(1):71–77. doi: 10.1001/archpediatrics.2009.239

Table 1.

Incidence of hypothermia (cumulative proportion of newborn babies and proportion of all measures): Entire neonatal period and first week of life

Proportion of all newborn babies (N=23,240)

Hypothermia	Neonatal (N=23,240, 100%)		First Week (N=22,114, 95.2%)
Hypothermia	Babies	Percent (95%CI)	Babies	Percent (95%CI)

Severe	23	0.1 (0.1 – 0.1)	13	0.1 (0.0 – 0.1)
Moderate	11,277	48.5 (47.9 – 49.2)	9161	41.4 (40.8 – 42.1)
Mild	20,516	88.3 (87.9 – 88.7)	15,621	70.6 (70.0 – 71.2)

Any	21,459	92.3 (92.0 – 92.7)	17,958	81.2 (80.6 – 81.7)

Proportion of all axillary measures (N=213,636)

Hypothermia	Neonatal (N=213,636, 100%)		First Week (N=94,571)
Hypothermia	Prevalent Days	Percent (95%CI)^*	Prevalent Days	Percent (95%CI)^*

Sev/Moderate	20,689	9.7 (9.5 – 9.8)	14,889	15.8 (15.5 – 16.1)
Mild	57,864	27.1 (26.8 – 27.3)	27,476	29.1 (28.8 – 29.4)

Any	78,553	36.7 (36.4 – 37.0)	42,375	44.8 (44.4 – 45.3)

Confidence intervals adjusted for multiple measures per infant