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Table 3 Results of the IRT analysis in the knowledge section (n = 318)

From: Development and validation of knowledge, attitude and practice questionnaire for prevention of respiratory tract infections among Malaysian Hajj pilgrims

Itemsbaλχ2 (df = 8)P values
K1 Flu-like illnesses are caused by:
Penyakit seperti selsema disebabkan oleh:
  K1i Virus−1.043.120.87120.2< 0.001
Virus
  K1ii Bacteria−0.542.160.7862.98< 0.001
Bakteria
  K1iii Allergies−0.413.500.9100.55< 0.001
Alergi
K2 Flu-like illnesses are spread by:
Penyakit seperti selsema disebarkan oleh:
  K2i Water0.242.320.8288.76< 0.001
Air
  K2ii Sharing towels with an infected person−0.323.950.9452.78< 0.001
Berkongsi tuala dengan penghidap
  K2iii Dust−0.862.240.7926.190.001
Debu
  K2iv Air−1.103.390.8824.340.002
Udara
  K2v Shaking the hands of an infected person with a cough and/or cold−0.161.900.7552.42< 0.0001
Berjabat tangan dengan pengidap yang batuk atau demam
  K3 Flu-like illnesses are spread quickly−1.171.410.64101.32< 0.001
Penyakit seperti selsema tersebar dengan pantas
K4 The following persons are at an increased risk of flu-like illnesses:
Berikut merupakan mereka yang berisiko tinggi mengalami penyakit seperti selsema:
  K4i Senior citizens aged 65 and older−0.571.940.7529.26< 0.001
Warga emas berusia 65 tahun ke atas
  K4ii Smokers−0.143.080.8775.46< 0.001
Perokok
  K4iii Asthmatics−0.872.830.8643.63< 0.001
Pesakit asma
  K4iv Diabetics0.404.320.9321.160.007
Pesakit diabetes
  K4v People with arthritis0.432.340.8050.84< 0.001
Penghidap artritis
  Kvi Those in crowded places/among a lot of people−1.131.830.7349.71< 0.001
Mereka yang berada di tempat yang sesak/dalam kalangan ramai orang
K5 What are the complications of flu-like illnesses?
Apakah komplikasi penyakit seperti selsema?
  K5i Pneumonia−0.272.760.9091.12< 0.001
Paru-paru berair
  K5ii Bronchitis−0.142.930.91126.49< 0.001
Bronkitis
  K5iii Difficulty in breathing0.646.260.8822.800.004
Kekejangan
  K5iv Multi-organ failure0.552.850.89170.57< 0.001
Kegagalan pelbagai organ
K6 The following practices can help protect you from flu-like illnesses:
Amalan berikut dapat menghindari anda daripada penyakit seperti selsema:
  K6i Ensuring a healthy diet−1.052.290.5038.14< 0.001
Memastikan pemakanan yang sihat
  K6ii Receiving vaccinations−0.802.260.8566.51< 0.001
Menerima vaksinasi
  K6iii Washing your hands with hand sanitizers−0.866.290.7815.080.058
Membasuh tangan dengan sanitasi
  K6iv Covering your nose with your hands−0.671.750.9271.99< 0.001
Menutup mulut dengan tangan
  K6v Wearing a face mask−1.225.070.7110.750.216
Memakai topeng muka
K7 The following are reasons for wearing a mask:
Berikut merupakan sebab memakai topeng muka:
  K7i Being in crowded places−1.036.110.9711.820.160
Berada di tempat yang sesak
  K7ii Being near people who are coughing−1.264.830.9620.750.008
Berada berdekatan orang yang batuk
  K7iii When I am sick−0.914.330.9449.03< 0.001
Apabila saya sakit
  K8 A cloth facial mask is as effective as a 2-ply surgical facial mask1.021.290.6060.85< 0.001
Topeng wajah kain sama berkesan dengan topeng wajah pembedahan dua lapisan
  K9 If I am not sick, the used face mask can be stored in a bag for later use0.721.560.67182.10< 0.001
Jika saya tidak sakit, topeng muka terpakai boleh disimpan dalam beg untuk kegunaan seterusnya
  1. a discrimination, b difficulty, df degree of freedom, IRT item response theory, SE standard error, χ2chi-square, λ standardized loadingItems with P values < 0.05 in the assessment of the item fit are highlighted in bold