Table 1.

Mean pain scores of individual items before, during, and after suctioning

Suction status	COMFORT (1–5; video)	NIPS (0–7; nurse)	PIPP (0–3; video)	VAS (0–10; nurse)	VAS (0–10; video)
Before	2 (0.76; 3,100)	0.77 (1.4; 622)		1.1 (1.2; 715)	0.91 (0.93; 619)
During	3 (0.83; 3,147)	4.4 (2.2; 633)	1.1 (0.89; 1,067)	3 (2.2; 725)	2.6 (1.5; 630)
After	2 (0.74; 3,064)	0.7 (1.3; 615)		1.1 (1.2; 710)	0.82 (0.9; 610)

COMFORT data consists of five behavioral COMFORT items; NIPS data consist of one compound score; PIPP data consist of three behavioral items, and VAS data consist of one variable assessed either by a nurse or by the investigator on the basis of video observations. Data are mean (SD; no.).

NIPS, Neonatal Infant Pain Scale; PIPP, Premature Infant Pain Profile; VAS, Visual Analogue Scale.