Figure 2From: Comparison between nasopharyngeal swab and nasal wash, using culture and PCR, in the detection of potential respiratory pathogensDifferences in the level of discomfort during NPS versus NW. *p < 0.0001. NPS: 2.25 [1.74, 2.76]; NW: 0.89 [0.54, 1.23] (Mean [95% Confidence Interval]).Back to article page