Light Reduction Capabilities of Homemade and Commercial Incubator Covers in NICU

Table 4

Percent of light reduced over oxygen hood under daytime and nighttime conditions of all cover types and differences in light reduction between covers.

Cover	Day				Night
	𝑁	Mean	SD	Range	𝑁	Mean	SD	Range
Crochet	10	92.60	2.05	89–95	10	71.56	13.38	53–94
Quilt^†	9	87.20	9.31	75–99	9	82.04	10.84	68–95
Flannel^‡	3	88.31	6.55	81–92	3	85.77	8.12	76–90
Receiving blanket*	1	61.56			1	57.69
Commercial covers^±	2	98.91	0.40	98-99	2	95.39	0.34	95.15–95.63

∗Comparison not available because only one receiving blanket was tested, and no mean is available.
^†Crochet versus quilt: daytime: 𝐹=16.69, 𝑃=0.000; nighttime: 𝐹=5.32, 𝑃=0.23.
^‡Crochet versus flannel: daytime: 𝐹=13.31, 𝑃=0.008; nighttime: 𝐹=7.62, 𝑃=0.28.
^±Crochet versus commercial: daytime: 𝐹=15.71. 𝑃=0.000; nighttime: 𝐹=8.97, 𝑃=0.07.