Table 2.

Effect of consumption of test- and placebo-matcha by students at university and pharmacy practice on psychosocial responses, as assessed from a questionnaire.

Questionnaire Item	University			Pharmacy
	Matcha			Matcha
	Test	Placebo	p value	Test	Placebo	p value
STAI (20–80)	45.8 ± 2.0	46.8 ± 2.8	0.76	42.3 ± 2.2	44.6 ± 2.7	0.51
Subjective stress (0–10)	4.01 ± 0.33	4.07 ± 0.37	0.89	4.66 ± 0.41	4.90 ± 0.45	0.69
Physical condition (1–5)	3.46 ± 0.13	3.58 ± 0.15	0.56	3.24 ± 0.14	3.40 ± 0.20	0.93
Achievement emotion (1–5)	(−)	(−)		3.29 ± 0.20	3.76 ± 0.13	0.07
Sleep time (h)	6.64 ± 0.18	6.33 ± 0.12	0.17	6.07 ± 0.19	6.38 ± 0.17	0.24

The STAI test consisted of 20 questions. The degree of anxiety per item was evaluated by 1–4 points. Subjective stress was evaluated using visual analogue scales (VAS: 0–10) from very relaxed to highly stressed. The physical condition of participants was assigned an ordinal scale (5, very good; 4, good; 3, normal; 2, slightly bad; 1, bad). Achievement emotion was assigned an ordinal scale compared to the standard level (5, completely; 4, better; 3, a little better; 2, a little worse; 1, much worse).