Table 1 Association between intention to booster dose of COVID-19 vaccination and demographic variables (n = 1120)

Age (yrs.)

 60–64

421

37.6

8.42 ± 1.68

0.001^**

 65–69

410

36.6

7.66 ± 2.43

 70–74

164

16.6

7.73 ± 2.16

 75–79

57

5.1

7.72 ± 2.08

  ≥ 80

68

61

7.22 ± 1.86

Gender

 Female

553

49.4

7.61 ± 2.20

0.001^**

 Male

567

50.6

8.25 ± 1.99

Educational level

 Illiterate

339

30.9

6.96 ± 2.47

0.001^**

 Under Diploma

109

9.7

7.69 ± 2.28

 Diploma

228

20.4

8.45 ± 1.59

 Upper Diploma

444

39.6

8.47 ± 1.71

Marital status

 Married

756

67.5

8.21 ± 2.12

0.001^**

 single

168

15.0

7.73 ± 1.98

 Widow

76

6.8

6.97 ± 2.29

 Divorced

33

2.9

6.97 ± 1.61

 Partner dies

87

7.8

7.16 ± 1.82

Number of families

 1

109

9.7

7.64 ± 2.03

0.020^*

 2

316

28.2

7.73 ± 2.38

  ≥ 3

695

62.1

8.07 ± 1.99

Economic Status

 Poor

214

19.1

7.37 ± 3.32

0.001^**

 Medium

688

61.4

8.38 ± 1.86

 Good

218

19.5

7.08 ± 2.29

Area of residence

 Rural area

947

84.6

8.11 ± 2.04

0.001^**

 Urban area

173

15.4

6.94 ± 2.25

Chronic condition of disease

 Yes

965

86.2

8.12 ± 1.92

0.001^**

 Not reported

155

13.8

6.75 ± 2.83

Diabetes

 Yes

963

86.0

7.91 ± 2.04

0.806

 Not reported

157

14.0

7.94 ± 2.13

Hypertension

 Yes

869

77.6

7.87 ± 2.18

0.063

 Not reported

251

22.4

8.15 ± 1.89

Chronic heart disease

 Yes

966

13.8

7.92 ± 2.15

0.501

 Not reported

154

86.3

8.04 ± 1.90

Chronic lung disease other than asthma

 Yes

117

10.4

7.56 ± 1.79

0.047

 Not reported

1003

89.6

7.98 ± 2.15

Had a positive test for COVID-19 infection

 Yes

367

32.8

7.66 ± 2.07

0.001^**

 Not reported

753

67.2

8.06 ± 2.13

Knows someone in the family who had COVID-19

 Yes

490

43.8

7.98 ± 1.93

0.473

 Not reported

630

56.3

7.89 ± 2.25

Influenza vaccine uptake

 Yes

410

36.6

7.77 ± 2.42

0.056

 Not reported

710

63.4

8.02 ± 1.92