. 2016 Mar 1;158:829–835. doi: 10.1007/s00701-016-2746-z

Table 3.

Sliding dichotomy analysis of weekend effect for GOS at 3 months after SAH

							Worse than expected	Better than expected	Odds ratio	P value
Prognosis^a	GOS	1	2	3	4	5
Good (WFNS I)	Weekend	2	0	2	11	141	15	141	0.59 (0.22, 1.57)	0.27
Good (WFNS I)	Weekday	5	0	0	3	47	8	47	0.59 (0.22, 1.57)	0.27
Intermediate (WFNS II & II)	Weekend	8	0	1	12	41	9	53	1.03 (0.25, 4.25)	0.96
Intermediate (WFNS II & II)	Weekday	2	0	2	4	15	4	19	1.03 (0.25, 4.25)	0.96
Worst prognosis (WFNS IV & V)	Weekend	19	1	11	15	20	20	46	0.49 (0.18, 1.45)	0.17
Worst prognosis (WFNS IV & V)	Weekday	10	1	3	3	6	11	12	0.49 (0.18, 1.45)	0.17

^aGood, worse and intermediate prognosis bands were based on WFNS cut-offs