Table 1 Patients’ characteristics of all patients (n = 1398).

All

1398

100

626

100

518

100

254

100

Gender

0.550

 Male

547

39.1

242

38.7

198

38.2

107

42.1

 Female

851

60.9

384

61.3

320

61.8

147

57.9

Reason against surgery

0.027

 Patient had surgery

1383

98.9

625

99.8

510

98.5

248

97.6

 Contraindication

1

0.1

0

0

0

0

1

0.4

 Patient declined surgery

1

0.1

0

0

1

0.2

0

0

 No indication

13

1

0.2

7

1.4

5

2.0

Setting

0.118

 Inpatient

1389

99.4

625

99.8

513

99.0

251

98.8

 Outpatient

9

0.6

1

0.2

5

1.0

3

1.2

Surgery

0.007

 Yes

1383

98.9

625

99.8

510

98.5

248

97.6

 No

15

1.1

1

0.2

8

1.5

6

2.4

Type of tonsil surgery*

0.056

 Tonsillectomy

1358

98.2

617

98.7

502

98.4

239

96.4

 Tonsillotomy

25

1.8

8

1.3

8

1.6

9

3.6

Additional adenoidectomy*

0.297

 No

1381

99.9

623

99.7

510

100

248

100

 Yes

2

0.1

2

0.3

0

0

0

0

Side of surgery*

0.026

 One side

16

1.2

5

0.8

4

0.8

7

2.8

 Both sides

1367

98.8

620

99.2

506

99.2

241

97.2

Age, years

23.8 ± 12.4

22.1 ± 12.6

25.3 ± 12.3

25.0 ± 11.5

 < 0.001

Tonsillitis episodes last 12 months, n = 1383

3.98 ± 2.01

3.82 ± 1.89

3.78 ± 1.89

4.78 ± 2.30

 < 0.001

Treatment duration, days*

6.0 ± 1.4

6.2 ± 1.4

6.0 ± 1.4

5.7 ± 1.5

 < 0.001