Middle East Current Psychiatry

Table 3 Friedman’s ANOVA test and post hoc test of difference between PTSS scores across timelines

From: A prospective longitudinal study of post-traumatic stress symptoms and its risk factors in newly diagnosed female breast cancer patients

Friedmans ANOVA test			Post hoc test
Variable	Mean rank	Chi-square value (P-value) DF = 2	Variable	Wilcoxon- Z value	P-value
Total PTSS			Total PTSS
Baseline	2.12	10.1	Baseline and 3 months	− 5.82	0.07
3 months	2.03	(0.01)	Baseline and 6 months	− 2.63	0.03
6 months	1.84		3 months and 6 months	− 10.14	0.01
Hyper-arousal			Hyper-arousal
Baseline	2.10	9.2	Baseline and 3 months	− 3.31	< 0.001
3 months	2.05	(0.01)	Baseline and 6 months	− 3.70	< 0.001
6 months	1.85		3 months and 6 months	− 1.60	0.12
Intrusion
Baseline	2.10	3.4
3 months	1.96	(0.14)
6 months	1.94
Avoidance
Baseline	2.05	1.1
3 months	1.98	(0.61)
6 months	1.97

P-value level of significance

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