In contrast, the never/rarely experiencing insomnia network didn't manifest edges “PHQ9–4-GAD7–2” (with a strength of 0.004 in the usually experiencing insomnia network), “PHQ9–4-GAD7–4” (with a strength of 0.02 in the usually experiencing insomnia network), “PHQ9–4-CRP” (with a strength of 0.019 in the usually experiencing insomnia network), and “PHQ9–5-CRP” (with a strength of 0.038 in the usually experiencing insomnia network). Here, CRP is linked to insomnia.