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Clinical Characteristics of the Saguenay–Lac-St-Jean Familial Collection Subjects. Abbreviation used: FEV 1 = Forced expiratory volume in one second, PC 20 = Provocative concentration of methacholine that induces a 20% fall in FEV 1 , SD = Standard deviation. - PowerPoint PPT Presentation
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Clinical Characteristics of the Clinical Characteristics of the Saguenay–Lac-St-Jean Familial Saguenay–Lac-St-Jean Familial Collection SubjectsCollection Subjects
Families
Probands Affected relatives Unaffected relatives
n = 253 n = 379 n = 643
Male : Female ratio 1:1.12 1:1.27 1:1.10
Mean age, yr (range) 17 (2-50) 39 (2-83) 46 (3-93)
Median age, yr 15 40 46
Smoking status, n (%)
Never 212 (85) 192 (51) 272 (43)
Ex-Smoker 12 (5) 112 (30) 234 (37)
Smoker 25 (10) 71 (19) 128 (20)
FEV1 *, % predicted (SD) 92.7 (16.0) 88.9 (22.4) 99.1 (17.2)
PC20**, mg/ml (SD) 2.50 (3.63) 3.35 (4.43) 21.36 (3.22)
Abbreviation used: FEV1 = Forced expiratory volume in one second, PC20 = Provocative concentration of methacholine that induces a 20% fall in FEV1, SD = Standard deviation.
* Geometric mean calculated for 218 probands, 325 affected relatives and 440 unaffected relatives** Geometric mean of the log-transformed PC20 calculated for 193 probands, 285 affected relatives and 418 unaffected relatives Madore et al. 2008. Human Genetics
Phenotype DefinitionPhenotype DefinitionPhenotype DefinitionPhenotype DefinitionBased on the American Thoracic Society and the Canadian Asthma Consensus guidelines
* 55 %
* 63 %
* 62 %
* 52 %
* Proportion in sample
Available Environmental Available Environmental DataData
Available Environmental Available Environmental DataData
Occupational Exposures
Domestical Exposures Carpets (including bedroom)
Pets
Smoking Status (past, present / passive exposure)
Personal respiratory infection documented
Personal health history
Personal type of allergy (indoor or outdoor)
Treatment for asthma
Genealogies parameters Genealogies parameters in the in the
Saguenay–Lac-St-Jean Saguenay–Lac-St-Jean Familial Collection Familial Collection
SubjectsSubjectsNumber of genealogies 226
Total ancestral links 2 216 822
Distinct ancestors 55 492
Mean number of occurrences 39.9
Mean genealogical depth 11.2
Maximum genealogical depth 19