Table 1 Selected socio-demographic and anamnestic characteristics and the associated willingness to receive COVID-19 vaccination (N = 865).

Socio-demographic:

Institution

Prison 1

248

36.2

107

44

Prison 2

203

29.6

139

70.2

Prison 3

234

34.2

182

79.5

χ² = 69.05, 2 df, p < 0.001

Age^c

42.4 ± 11.93 (18–78)^a

t test = -4.42, df = 666, p < 0.001

Nationality^c

Italians

645

94.7

399

63.3

Foreigners

36

5.3

26

72.2

χ² = 1.16, 1 df, p = 0.280

Marital status^c

Married/cohabitant

402

60.0

250

63.6

Unmarried/widowed/separated/divorced

268

40.0

173

65.8

χ² = 0.32, 1 df, p = 0.570

Sons/daughters^c

Yes

508

76.2

319

64.3

No

159

23.8

96

61.5

χ² = 0.39, 1 df, p = 0.530

Education level^c

High school or university degree

173

25.8

119

70

Other

497

74.2

295

60.8

χ² = 4.56, 1 df, p = 0.033

Occupation before detention^c

Employed

360

53.3

237

67.1

Unemployed

315

46.7

184

59.9

χ² = 3.69, 1 df, p = 0.055

First detention^c

Yes

273

41.4

163

60.8

No

387

58.6

247

65.5

χ² = 1.49, 1 df, p = 0.222

Working activity in the prison

Yes

196

28.6

133

69.6

No

489

71.4

295

61.6

χ² = 3.83, 1 df, p = 0.050

Type of cell^c

Individual

45

7.3

38

86.4

Shared

570

92.7

348

62.2

χ² = 10.29, 1 df, p = 0.001

Anamnestic:

At least one chronic disease

Yes

183

26.7

131

72.4

No

502

73.3

297

60.7

χ² = 7.76, 1 df, p = 0.005

At least one common symptom compatible with COVID-19 in the previous 3 months^b

Yes

427

62.3

267

64

No

258

37.7

161

63.6

χ² = 0.01, 1 df, p = 0.918

Having generalized anxiety symptoms

Yes

354

51.7

214

61.8

No

331

48.3

214

66

χ² = 1.28, 1 df, p = 0.258

Having depression symptoms

Yes

310

45.3

194

64

No

375

54.7

234

63.8

χ² = 0.005, 1 df, p = 0.943

Having undergone a screening test with RT-PCR for SARS-CoV-2 detection^c

Yes

569

86.7

352

63.2

No

87

13.3

56

65.9

χ² = 0.23, 1 df, p = 0.632