Knowledge, attitude, and practice (KAP) towards pulmonary nodules among Chinese adults: a mediation analysis

The management of pulmonary nodules involves self-management. This study, conducted in China between September and October 2022, explored the knowledge, attitude, and practice (KAP) towards pulmonary nodules among Chinese adults. The participants were enrolled through convenience sampling when they visited the hospital. The KAP questionnaire was developed by the investigators. Participants who received scores of ≥ 75% of the total score for each dimension were defined as good or positive, 50-75% as moderate, and ≤ 50% as poor or negative. A total of 1209 participants, with an average age of 38.7 years, completed a self-administered online questionnaire. The knowledge, attitude, and practice scores were 5.95 ± 3.54/12, 29.05 ± 4.04/40, and 23.72 ± 6.08/45, respectively, indicating poor knowledge, moderate attitude, and moderate practice regarding pulmonary nodules. The multivariable analyses showed significant associations among knowledge, attitudes, and practice. The mediation analysis indicated that knowledge, education, income, smoking habits, and awareness of pulmonary nodules influenced participants' practices. In conclusion, a significant population of adults in China had inadequate knowledge, attitude, and practice towards pulmonary nodules. Sufficient knowledge was associated with appropriate practices toward pulmonary nodules. Therefore, health education programs aimed at improving knowledge about pulmonary nodules may be helpful for encouraging appropriate attitudes and maintaining healthy practices.