Table 3.

Results for OFF/ON and ON/OFF dialysis transitions of 6 h with inverted S _I confounders (t = −2 to t = 4, N = 51)

Time t (hr)	OFF/ON (N = 51), expect ΔS I < 0						ON/OFF (N = 51), expect ΔS I > 0
	QI (%)	Q2 (%)	Q3 (%)	p value	ΔS I > 0 % (confounders)		Q1 (%)	Q2 (%)	Q3 (%)	p value	ΔS I < 0 % (confounders)
−2	−7	1	10	0.9	31	61	−13	−4	3	0.7	32	63
−1	0	0	0	1	0	0	0	0	0	1	0	0
0	−24	−7	−1	0.3	10	20	−5	1	8	0.9	24	47
1	−45	−14	−2	0.05	7	14	−7	2	15	0.9	23	45
2	−58	−29	−6	0.02	5	10	−13	4	26	0.8	21	41
3	−55	−19	−5	0.03	9	18	−15	9	28	0.7	23	45
4	−46	−22	−5	0.03	6	12	−15	3	31	0.5	24	47

The results show ΔS _I quartiles and number of confounders with ΔS _I in direction opposite to median trend hypothesized. Q₂ = median = 50 % percentiles result. * p values measured using Wilcoxon rank sum tests, Q₁ = 25 % percentile, Q₃ = 75 % percentile