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Table 1 Demographics and Baseline Characteristics of Study Patients

From: Effectiveness of asfotase alfa for treatment of adults with hypophosphatasia: results from a global registry

Characteristic

Study Population

(N = 190)

Sex, n (%)

 Female

130 (68.4)

 Male

60 (31.6)

Age at diagnosis of HPP, years

 N

159

 Median (min, max)

37.1 (0, 77)

 ≤ 18 years at diagnosis, n (%)

32 (16.8)

 > 18 years at diagnosis, n (%)

127 (66.8)

 Missing, n (%)

31 (16.3)

Age at start of asfotase alfa treatment, years

 N

190

 Median (min, max)

45.5 (18.3, 77.9)

Time from diagnosis to start of asfotase alfa treatment, years

 N

154

 Median (min, max)

1.4 (0.01, 60.8)

White race, n (%)

153 (80.5)

Not Hispanic or Latino, n (%)

146 (76.8)

Number of signs and symptoms per patient

 

 N

180

 Median (min, max)

5 (1, 14)

Number of body systems impacted per patient

 

 N

180

 Median (min, max)

3 (1, 8)

History of signs and symptoms, n (%)

 

 Skeletal

120 (63.2)

 Neurologic

30 (15.8)

 Constitutional/metabolic

88 (46.3)

 Muscular

71 (37.4)

 Dental

129 (67.9)

 Respiratory

7 (3.7)

 Renal

26 (13.7)

 Rheumatic

21 (11.1)

 Pain

138 (72.6)

HPP onset, n (%)

 

 Pediatric

173 (91.1)

  Perinatal/infantile onset

18 (9.5)

  Juvenile onset

117 (61.6)

  Pediatric onset, specific type unknown

38 (20.0)

 Adult-onset HPP

17 (8.9)

Gene classification, n (%)

 

 Heterozygous

113 (59.5)

 Compound heterozygous

55 (28.9)

 Homozygous

4 (2.1)

 Unknown/missing

18 (9.5)

  1. HPP hypophosphatasia