Table2 Multivariate binary logistic regression analysis for independent factors of sleep quality among PN patients

Age (reference: < 50)

1.88 (1.35, 2.58)

 < 0.001

Gender (reference: male)

1.56 (1.05, 2.33)

0.028

Smoking status (reference: never smoke)

Current

0.57 (0.27, 1.20)

0.139

Ever

1.02 (0.62, 1.68)

0.951

Subjective symptoms (reference: no)

1.14 (0.82, 1.30)

0.441

Reasons of CT workup (reference: physical discomfort)

Health check-up

0.64 (0.41, 1.03)

0.064

Follow-up exam for PN

0.66 (0.43, 1.02)

0.061

Number of PNs (reference: solitary)

1.31 (0.96, 1.80)

0.089

Time from date of detection(reference: > 24 months)

0–6 months

1.65 (0.99, 2.73)

0.053

7–12 months

2.14 (1.18, 3.89)

0.013

12–24 months

1.78 (0.72, 2.36)

0.382

HADS-A (reference: not anxiety)

1.78 (1.17, 2.71)

0.007

HADS-D (reference: not depression)

1.84 (1.16, 2.92)

0.010