Table 3.

Univariate and Multivariate Ordinal Logistic Regression Results for Individual Patient Data: Morbidity According to Prognostic Factor

	Univariate			Multivariate
Prognostic Factor	OR	95% CI	P	OR	95% CI	P
Age, y
<3	1			1
3–<12	0.51	0.15–1.67	.27	0.44	0.13–1.51	.19
≥12	0.68	0.21–2.16	.51	0.60	0.18–2.00	.41
Sex
Female	1			1
Male	1.22	0.76–1.96	.42	1.16	0.70–1.92	.55
Relapse
No	1			1
Yes	4.32	2.34–7.97	< .001	4.02	2.11–7.65	< .001
WHO grade
I	1			1
II	1.54	0.84–2.85	.17	1.58	0.82–3.03	.17
III	0.73	0.28–1.87	.51	0.69	0.25–1.91	.48
Neurofibromatosis
No	1			1
Yes	1.90	1.04–3.48	.04	1.52	0.79–2.92	.21
Location
Supratentorial	1			1
Infratentorial	1.08	0.54–2.15	.82	1.02	0.49–2.09	.97
Spinal	1.81	0.86–3.79	.12	1.23	0.55–2.75	.61

Abbreviations: CI, confidence interval; OR, odds ratio; WHO, World Health Organization.