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Table 1 Characteristics of the NF1 patients according to whether their vital status was known or unknown

From: Mortality Associated with Neurofibromatosis 1: A Cohort Study of 1895 Patients in 1980-2006 in France

Clinical features*

KnownVS group n = 1226

No (%)†

UnknownVS group

No (%)†

OR (95%CI) ‡

P value

Age, years (n = 1893)

25.9 [2-82]□

25.4 [0.2-68]□

-

0.19

Male gender (n = 1 894)

579 (47)

304 (46)

0.9 (0.8-1.1)

0.57

Familial case (n = 1382)

515 (57)

278 (57)

1.0 (0.8-1.3)

0.95

At least 6 café-au-lait spots (n = 1889)

1 046 (86)

584 (87)

0.9 (0.7-1.2)

0.56

Freckles (n = 1 871)

1 043 (86)

509 (78)

1.7 (1.3-2.2)

<10-4

Neurofibromas (n = 1879)

923 (76)

495 (75)

1.0 (0.8-1.3)

0.87

Plexiform neurofibromas (n = 1865)

361 (30)

175 (27)

1.2 (0.9-1.4)

0.20

Lisch nodules (n = 1463)

382 (40)

204 (40)

1.1 (0.8-1.2)

0.87

Renal artery stenosis (n = 1361)

5 (1)

3 (1)

0.7 (0.2-3.1)

0.70

Scoliosis (n = 1373)

231 (25)

104 (24)

1.1 (0.8-1.4)

0.72

Nonunion (n = 1835)

45 (4)

20 (3)

1.2 (0.7-2.0)

0.57

Hydrocephalus (n = 1827)

32 (3)

23 (4)

0.7 (0.4-1.2)

0.22

OBNI (n = 801)

210 (40)

105 (38)

1.0 (0.7-1.4)

0.96

Optic pathway glioma (n = 1812)

161 (14)

69 (11)

1.3 (0.9-1.7)

0.11

MPNSTs (n = 1842)

80 (7)

16 (3)

2.7 (1.6-4.7)

<10-4

Pheochromocytoma (n = 1836)

13 (1)

7 (1)

1.3 (0.5-3.7)

0.61

  1. Abbreviations: VS, vital status; OR, odds ratio; 95%CI, 95% confidence interval; OBNI, high T2-signal intensity lesions on magnetic resonance imaging of the brain; MPNST, malignant peripheral nerve sheath tumor
  2. * Values in parentheses are the numbers of patients for whom data were available.
  3. □Age at the end of the study period in patients whose vital status was known and age at last follow-up in those whose vital status was unknown status
  4. † Percentages may not total 100, because of missing data.
  5. ‡The ORs were adjusted for age.
  6. Data are numbers (%) or median [range].