Table 2 Percentage of correct answer, discrimination index, and item-total correlation of health literacy items

Knowledge

What is the normal body temperature?

36.3

0.221

0.523

0.302

0.232

What diseases do vaccines protect against?

86.6

0.702

0.984

0.283

0.367

Which is the best way for influenza prevention?

79.1

0.574

0.952

0.378

0.371

Which is the best way for measles prevention?

46.5

0.286

0.681

0.395

0.287

What are the typical clinical symptoms of tuberculosis?

74.7

0.540

0.943

0.403

0.377

How is hepatitis A spread?

48.6

0.293

0.731

0.438

0.327

Which of the following is the correct path for the transmission of hepatitis B?

23.9

0.078

0.512

0.433

0.360

Which of the following is the correct path for the transmission of HIV?

39.6

0.138

0.698

0.560

0.416

Preventative measures and behaviors

How many days did you do physical activities more than 30 min per day in the past week?

38.1

0.280

0.498

0.218

0.173

Do you spit up phlegm in public?

93.9

0.818

0.996

0.178

0.337

Do you cover up when you want to sneeze or cough?

93.4

0.806

0.994

0.189

0.343

Do you wash your hands before eating, after using the bathroom?

54.4

0.258

0.840

0.582

0.445

Do you wear mask when visiting someone at the hospital?

20.9

0.063

0.420

0.357

0.322

Do you often open the windows to keep

86.4

0.688

0.977

0.289

0.348

The air circulation during the respiratory infectious diseases epidemics?

Do you separate raw and cooked food when cooking or preserving them?

77.2

0.549

0.942

0.393

0.375

Will you visit restaurants with poor sanitation?

28.8

0.109

0.568

0.459

0.371

Do you share towels with others?

66.6

0.410

0.886

0.476

0.391

Do you visit a dentist at an irregular outpatient clinic?

92.4

0.832

0.988

0.156

0.263

Do you uptake rabies vaccine after a dog or cat bite?

76.1

0.530

0.938

0.408

0.379

Will you pay attention to infectious disease epidemics at your destination when you want to travel?

72.8

0.421

0.935

0.514

0.458

Health skills

Can you easily get the information about infectious diseases?

41.2

0.091

0.817

0.725

0.534

Can you read drug instructions?

48.1

0.115

0.889

0.773

0.562

Can you easily read popular science readings about infectious diseases?

48.3

0.096

0.916

0.820

0.598

Can you read laboratory sheets?

47.9

0.190

0.818

0.628

0.468

Can you use the thermometer?

76.9

0.579

0.927

0.348

0.341

Overall

61.3

0.387

0.815

0.428