Table 2.

Questionnaire items with differences and significances between late presenters and controls

	Late presenters, mean (SD)	Controls, mean (SD)	p value	Test statistics, T/Z
PANAS
Positive affect α = 0.843*	37.10 (5.07)	32.00 (7.78)	0.019	T = 2.46
Negative affect α = 0.841*	18.05 (7.70)	19.85 (7.35)	0.314	Z = −1.03
IPQ-R α = 0.651
Timeline	14.80 (4.89)	12.00 (4.72)	0.038	Z = −2.08
Consequences	13.70 (4.18)	13.85 (4.85)	0.917	T = −0.11
Personal control	15.60 (2.92)	14.30 (3.98)	0.247	T = 1.18
Control by treatment	16.40 (2.92)	16.70 (1.72)	0.820	Z = −0.23
Coherence	14.20 (5.79)	16.3 (3.77)	0.182	T = −1.36
Appearance	9.60 (3.76)	9.30 (3.99)	0.808	T = 0.25
Emotion	14.65 (6.61)	17.75 (4.89)	0.100	T = −1.69
STAI α = 0.742
State	49.05 (17.30)	50.70 (13.26)	0.737	T = −0.34
Trait	34.55 (12.19)	37.70 (10.23)	0.174	Z = −1.37
NEO-FFI α = 0.617
Neuroticism	1.50 (0.99)	1.51 (0.72)	0.978	T = −0.03
Extraversion	2.16 (0.55)	2.35 (0.68)	0.431	T = −0.94
Openness to experience	2.32 (0.59)	2.39 (0.46)	0.668	T = −0.43
Agreeableness	2.85 (0.42)	2.96 (0.43)	0.353	T = −0.80
Conscientiousness	3.19 (0.43)	2.94 (0.48)	0.107	T = −1.65
SPREUK-15 α = 0.796
Religious/spiritual desires	29.50 (32.44)	26.75 (28.39)	0.925	Z = −0.11
Trust	50.50 (34.82)	50.00 (26.25)	0.959	T = 0.05
Reflection	53.75 (28.64)	54.56 (28.08)	0.928	T = −0.09

For interpretation of values, see Methods section. α = Cronbach's alpha.

^*Separate α for positive affect and negative affect due to 2 scales.