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Table 1 Patient Characteristics

From: Asthma in Patients With Japanese Cedar Pollinosis

 

Total

Cedar Pollinosis (-)

Cedar Pollinosis (+)

No. patients

333

217

116

Age, yr

48.3 ± 1.0

48.7 ± 1.3

47.5 ± 1.6

Sex, n (%)

   

   Male

137 (41.1)

91 (41.9)

46 (39.7)

   Female

196 (58.9)

126 (58.1)

70 (60.3)

Type Atopic, n (%)

211 (63.4)

129 (59.5)

82 (70.7)

   Nonatopic

122 (36.6)

88 (40.5)

34 (29.3)

Duration of asthma, yr

15.3 ± 0.8

15.0 ± 1.0

15.8 ± 1.3

IgE RIST (U/mL)

565.8 ± 51.6

580.6 ± 72.9

538.9 ± 60.3

Cedar RAST (UA/mL)

10.9 ± 1.4

4.2 ± 1.2

23.4 ± 2.8

Histamine-PC20 (μg/mL)

1424 ± 194 (n = 125)

1550 ± 262 (n = 81)

1193 ± 267 (n = 44)

Severity of asthma, n (%)

   

   Mild

81 (24.3)

54 (24.9)

27 (23.3)

   Moderate

177 (53.2)

116 (53.5)

61 (52.6)

   Severe

75 (22.5)

47 (21.6)

28 (24.1)

Therapy, n (%)

   

   BDP

275 (82.6)

182 (83.9)

93 (80.2)

   Slow-release theophylline

259 (77.8)

165 (76.0)

94 (81.0)

   Oral β2-agonists

126 (37.8)

77 (35.5)

49 (42.2)

Anti-allergic agents, n (%)

57 (17.1)

37 (17.1)

20 (17.2)

Oral steroids, n (%)

20 (6.0)

13 (6.0)

7 (6.0)

  1. Adapted from Ueno et al (2002) with permission from Arerugi[6].
  2. RIST, Radio ImmunoSorbent Test; RAST, Radio AllergoSorbent Test.