Table 2 Significant associations between variants in domains and clinical features (p-value < 0.001).

From: Protein domain-specific genotype–phenotype correlation study of neurofibromatosis type 1

Age

Clinical features

Group

Variants in the category n/N (%)

Variants outside the category n/N (%)

OR [95% C.I.]

P-value*

Domain: CSRD

     

 ≥ 8 yr#

CALMs

NIH criteria

179/201 (89.05%)

950/993 (95.67%)

0.37 [0.21–0.66]

 < 0.001 (Other)

 ≥ 8 yr

Lisch nodules

NIH criteria

76/160 (47.50%)

247/810 (30.49%)

2.06 [1.44–2.95]

 < 0.001 (Domain)

 ≥ 8 yr

Plexiform neurofibroma

NIH criteria

65/183 (35.52%)

151/908 (16.63%)

2.76 [1.91–3.97]

 < 0.001 (Domain)

 ≥ 8 yr

Cutaneous neurofibroma

NIH criteria

137/194 (70.62%)

416/852 (48.83%)

2.52 [1.78–3.59]

 < 0.001 (Domain)

All

MRI brain abnormalities

Others

67/135 (49.63%)

181/639 (28.33%)

2.49 [1.67–3.70]

 < 0.001 (Domain)

Domain: TBD

     

 ≥ 8 yr

Cutaneous neurofibroma

NIH criteria

19/69 (27.54%)

534/977 (54.66%)

0.32 [0.17–0.55]

 < 0.001 (Other)

All

Hypertelorism

Noonan-syndrome facial features

22/48 (45.83%)

153/778 (19.67%)

3.45 [1.81–6.52]

 < 0.001 (Domain)

All

Speech delay

Neurological and behavioural features

14/43 (32.56%)

95/759 (12.52%)

3.37 [1.58–6.86]

 < 0.001 (Domain)

Domain: GRD

     

All

Hypertelorism

Noonan-syndrome facial features

52/160 (32.50%)

123/666 (18.47%)

2.12 [1.41–3.17]

 < 0.001 (Domain)

All

Ptosis

Noonan-syndrome facial features

65/178 (36.52%)

106/696 (15.23%)

3.20 [2.17–4.70]

 < 0.001 (Domain)

 ≥ 8 yr

Short Stature

Growth and musculoskeletal features

34/116 (29.31%)

61/501 (12.18%)

2.98 [1.78–4.95]

 < 0.001 (Domain)

All

Speech delay

Neurological and behavioural features

35/144 (24.31%)

74/658 (11.25%)

2.53 [1.56–4.05]

 < 0.001 (Domain)

All

Congenital heart disease

Cardiovascular abnormalities

56/308 (18.18%)

70/1018 (6.88%)

3.01 [2.02–4.46]

 < 0.001 (Domain)

Domain: PH

     

 ≥ 8 yr

Lisch nodules

NIH criteria

10/91 (10.99%)

313/879 (35.61%)

0.22 [0.10–0.44]

 < 0.001 (Other)

 ≥ 8 yr

Plexiform neurofibroma

NIH criteria

3/123 (2.44%)

213/968 (22.00%)

0.09 [0.02–0.27]

 < 0.001 (Other)

All

Ptosis

Noonan-syndrome facial features

42/66 (63.64%)

129/808 (15.97%)

9.18 [5.23–16.44]

 < 0.001 (Domain)

 ≥ 8 yr

Short Stature

Growth and musculoskeletal features

18/54 (33.33%)

77/563 (13.68%)

3.15 [1.60–6.03]

 < 0.001 (Domain)

 ≥ 8 yr

Pectus deformity

Growth and musculoskeletal features

16/46 (34.78%)

37/607 (6.10%)

8.16 [3.80–17.14]

 < 0.001 (Domain)

All

Delayed cognitive development

Neurological and behavioural features

86/165 (52.12%)

348/1254 (27.75%)

2.83 [2.01–3.99]

 < 0.001 (Domain)

All

Speech delay

Neurological and behavioural features

17/38 (44.74%)

92/764 (12.04%)

5.89 [2.81–12.22]

 < 0.001 (Domain)

All

ADHD

Neurological and behavioural features

14/37 (37.84%)

110/767 (14.34%)

3.63 [1.67–7.62]

 < 0.001 (Domain)

Domain: HLR

     

All

Hypertelorism

Noonan-syndrome facial features

13/150 (8.67%)

162/676 (23.96%)

0.30 [0.15–0.55]

 < 0.001 (Other)

All

Ptosis

Noonan-syndrome facial features

8/149 (5.37%)

163/725 (22.48%)

0.20 [0.08–0.41]

 < 0.001 (Other)

All

Delayed cognitive development

Neurological and behavioural features

14/147 (9.52%)

420/1272 (33.02%)

0.21 [0.11–0.38]

 < 0.001 (Other)

All

Speech delay

Neurological and behavioural features

1/147 (0.68%)

108/655 (16.49%)

0.03 [0.00–0.20]

 < 0.001 (Other)

All

ADHD

Neurological and behavioural features

10/147 (6.80%)

114/657 (17.35%)

0.35 [0.16–0.69]

 < 0.001 (Other)

All

Congenital heart disease

Cardiovascular abnormalities

3/149 (2.01%)

123/1177 (10.45%)

0.18 [0.04–0.54]

 < 0.001 (Other)

Domain: CTD

All

Ptosis

Noonan-syndrome facial features

1/91 (1.10%)

170/783 (21.71%)

0.04 [0.00–0.23]

 < 0.001 (Other)

All

Delayed cognitive development

Neurological and behavioural features

11/90 (12.22%)

423/1329 (31.83%)

0.30 [0.14–0.57]

 < 0.001 (Other)

Not in domains

     

 ≥ 8 yr

Cutaneous neurofibroma

NIH criteria

144/320 (45.00%)

409/727 (56.26%)

0.64 [0.48–0.84]

 < 0.001 (Other)

All

Ptosis

Noonan-syndrome facial features

27/261 (10.34%)

144/614 (23.45%)

0.38 [0.23–0.59]

 < 0.001 (Other)

 ≥ 8 yr

Pectus deformity

Growth and musculoskeletal features

5/204 (2.45%)

48/450 (10.67%)

0.21 [0.06–0.54]

 < 0.001 (Other)

All

Congenital heart disease

Cardiovascular abnormalities

18/363 (4.96%)

108/964 (11.20%)

0.41 [0.23–0.70]

 < 0.001 (Other)

  1. #clinical features with common onset age ≥ 8 yr.
  2. *Fisher Exact Test with significant level at 0.001.
  3. n: number of samples with the clinical feature.
  4. N: number of samples with variants in the category.