Table 2: Family characteristics of students with asthma and nonasthmatic control subjects.

CharacteristicsStudents with asthma (%)Nonasthmatic control students (%) value

Paternal education (years)
 02 (0.8)4 (0.3)0.010
 640 (15.3)144 (11.3)
 6–966 (25.2)252 (19.8)
 9–1291 (34.7)479 (37.7)
 University level42 (16.0)201 (15.8)
 Master, PhD21 (8.0)191 (15.0)
Paternal smoking
 Yes135 (51.5)717 (56.1)0.144
 No127 (48.5)560 (43.9)
Maternal education (years)
 02 (0.8)3 (0.2)0.132
 ≤633 (12.6)116 (9.1)
 6–951 (19.5)207 (16.2)
 9–12103 (39.3)557 (43.8)
 University level46 (17.6)221 (17.4)
 Master, PhD27 (10.3)170 (13.4)
Maternal smoking
 Yes115 (43.9)505 (39.5)0.191
 No147 (56.1)772 (60.5)
Family status
 Engaged263 (85.1)1150 (90.1)0.004
 Divorced34 (11.0)86 (6.7)
 Widowed8 (2.6)37 (2.9)
 Single parent 4 (1.3)3 (0.2)