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Table 1 Lifetime prevalence of patient characteristics during follow-up

From: Primary ciliary dyskinesia: critical evaluation of clinical symptoms and diagnosis in patients with normal and abnormal ultrastructure

  

Total population (n = 168)

Normal ultrastructure (n = 59)

Dynein deficiency (n = 74)

Central pair abnormalities (n = 35)

p-value for comparison between groups

General

Age at diagnosis in years (median - IQR)

9.9 (3.7–23.4)

10.2 (4.4–21.8)

10.8 (3.7–29.6)

8.7 (2.2–19.3)

0.60

 

Male gender, n (%)

91 (54.8)

32 (54.2)

39 (53.4)

20 (58.8)

0.85

 

North African ancestry, n (%)

38 (23.3)

8 (14.0)

12 (16.7)

18 (52.9)*

0.0001

 

Consanguinity, n (%)

33 (19.6)

9 (15.3)

12 (16.2)

12 (34.3)*

0.004

 

Sibling with PCD, n (%)

37 (22.0)

9 (15.3)*

17 (23.0)

11 (31.4)*

0.047

 

Situs inversus, n (%)

69 (41.1)

18 (30.5)

42 (56.8)*

9 (25.7)

0.001

 

Structural cardiac abnormality, n(%)

11 (6.5)

4 (8.7)

5 (9.6)

2 (9.1)

0.75

Lower respiratory tract

Neonatal respiratory problems, n (%)

75 (44.6)

27 (45.8)

30 (40.5)

18 (51.4)

0.60

 

Wheezing, n (%)

79 (47.0)

28 (46.5)

37 (50.0)

14 (40.0)

0.33

 

Bronchiectasis, n (%)

114 (67.9)

40 (67.8)

51 (68.9)

23 (65.7)

0.51

 

Lobar collapse, n (%)

68 (40.5)

23 (39.0)

30 (40.5)

15 (42.9)

0.16

 

Pulmonary infiltrate, n (%)

100 (59.5)

37 (62.7)

43 (58.1)

20 (57.1)

0.29

 

Lobectomy, n (%)

15 (8.9)

4 (6.8)

7(9.5)

4 (11.4)

0.49

 

H. influenzae, n (%)

72 (42.9)

28 (47.5)

33 (44.6)

11 (31.4)

0.15

 

Strep. pneumoniae, n (%)

45 (26.8)

18 (30.5)

20 (27.0)

7 (20.0)

0.08

 

Staph. aureus, n (%)

28 (16.7)

9 (15.3)

17 (23.0)

2 (5.7)

0.07

 

Pseud. aeruginosa, n (%)

27 (16.1)

9 (15.3)

14 (18.9)

4 (11.4)

0.59

Upper respiratory tract

Recurrent sinusitis, n (%)

111 (66.1)

41 (69.5)

52 (70.3)

18 (51.4)

0.67

 

Nasal polyps, n (%)

54 (32.1)

19 (32.2)

25 (33.8)

10 (28.6)

0.80

 

Sinus surgery, n (%)

68 (40.5)

27 (45.8)

31 (41.9)

10 (28.6)

0.79

 

nNO (ppb) (median – IQR)

52 (30–170)

64 (37–199)

40 (25–98)

89 (24–327)

0.15

 

Ear discharge, n (%)

70 (41.7)

30 (50.8)

26 (35.1)

14 (40.0)

0.33

 

Ear drum perforation, n (%)

35 (20.8)

15 (25.4)

11 (14.9)

9 (25.7)

0.15

 

Hearing loss, n (%)

58 (34.5)

20 (33.9)

30 (40.5)

8 (22.9)

0.33

 

Hearing aid, n (%)

10 (6.0)

2 (3.4)

5 (6.8)

3 (8.6)

0.38

 

Grommets insertion, n (%)

82 (48.8)

30 (50.8)

33 (44.6)

19 (54.3)

0.56

 

Adenotomy, n (%)

65 (38.7)

28 (47.5)

26 (35.1)

11 (31.4)

0.76

  1. Legend: Table 1 shows general patient characteristics, incidence of specific lower and upper respiratory tract signs and symptoms in the total PCD group and in the 3 subgroups. P-values for the comparison between the three subgroups (Kruskal-Wallis for continuous variables and χ2 for proportions) are shown in the last column. If they revealed a significant result, pairwise comparisons were performed and the significant outlier was identified and marked with *.
  2. IQR, inter quartile range.
  3. nNO, nasal nitric oxide.
  4. PCD, primary ciliary dyskinesia.
  5. Data marked in bold denote significant differences.