Table 2.

List of linear mixed effects models (for continuous variables) and logistic mixed effects models (for dichotomous variables). All models were adjusted for age and sex. Bolded and red values indicate statistical significance (p < 0.05). PinQ = Pediatric Incontinence Quality of Life questionnaire, BBD = bowel and bladder dysfunction, Q_maxFI = maximum flow index, Q_avgFI = mean flow index

	Linear mixed-effects models
	Estimate (increase in 100 units of pons volume)	P value (adjusted for age and sex)	Observations	Unique patients
Post-void bladder volume	−0.077	0.972	64	24
Functional bladder capacity	3.341	0.263	47	24
Maximum urine flow index (QmaxFI)	0.005	0.280	56	22
Mean urine flow index (QavgFI)	−0.003	0.577	43	22
Voids per day	−0.026	0.664	27	15
Bowel movements per day	0.021	0.186	16	10
Bristol stool score	−0.002	0.868	16	10
PinQ score	−0.442	0.011	40	20
Toronto BBD score	−0.218	0.062	41	21
Compass-31 score	−0.187	0.254	22	16
Hemoglobin A1c	−0.024	0.219	96	25
	Logistic mixed-effect models
	Odds ratio (increase in 100 units of total pons volume)	P value (adjusted for age and sex)	Observations	Unique patients
Increased post-void residual	0.958	0.048	64	24
Disordered uroflowmetry	0.985	0.614	56	22
Subjective urinary frequency *	0.902	0.219	21	11
Subjective urinary urgency	0.873	0.089	17	10
Subjective urinary incontinence	1.055	0.646	17	10
Diagnosis of diabetes insipidus	0.208	0.046	97	25
Objective polyuria on voiding diary	0.913	0.148	30	15

^*Models devolved into fixed effects models