Table 2.

Association of asthma with glioma cases compared with different set of controls (conditional logistic regression matching age and sex)

	Cases (n=135)	MRI controls (n=135)	OR (95% CI) for MRI controls	P value	Community controls (n=135)	OR (95% CI) for Community controls	P value
Asthma PAC*, n (%)	21 (16)	36 (27)	0.5 (0.3 to 0.9)	0.02	17 (13)	1.3 (0.6 to 2.6)	0.48
Asthma activity, n (%)
No asthma	114 (84)	99 (73)	(ref)	(ref)	118 (87)	(ref)	(ref)
Inactive asthma	11 (8)	16 (12)	0.6 (0.3 to 1.3)	0.17	8 (6)	1.4 (0.5 to 3.8)	0.46
Active asthma	10 (7)	20 (15)	0.4 (0.2 to 0.9)	0.03	9 (7)	1.1 (0.4 to 3.2)	0.79
Asthma control, n (%)
No asthma	114 (84)	99 (73)	(ref)	(ref)	118 (87)	(ref)	(ref)
Not poorly controlled asthma	19 (14)	29 (21)	0.6 (0.3 to 1.1)	0.11	14 (10)	1.5 (0.7 to 3.0)	0.31
Poorly controlled asthma	1 (1)	7 (5)	0.1 (0.02 to 1.1)	0.05	3 (2)	0.3 (0.04 to 3.5)	0.38
Eczema, n (%)	11 (8)	17 (13)	0.6 (0.3 to 1.4)	0.22	7 (5)	1.7 (0.6 to 4.6)	0.32
Allergic rhinitis, n (%)	28 (21)	30 (22)	1.0 (0.5 to 1.6)	0.76	23 (17)	1.3 (0.7 to 2.4)	0.43
Family history of asthma, n (%)
Undocumented	34 (25)	36 (27)	–	–	51 (38)	–	–
Yes	12 (9)	15 (11)	0.8 (0.3 to 1.7)	0.49	7 (5)	1.5 (0.5 to 4.1)	0.46
No	89 (66)	84 (62)	(ref)	(ref)	77 (57)	(ref)	(ref)

*PAC, predetermined asthma criteria.