Table 2.

Descriptive statistics of outcome variables in the three-phase stepped intervention on fruit purchasing in a university cafeteria, Lima, Peru

	Days	Mean	sd	Median	Minimum	Maximum	Kruskal–Wallis χ 2 (P value)
Total pieces of fruit sold daily
Phase 1	15	0·93	1·10	1	0	3	7·537
Phase 2	14	1·21	1·19	1	0	4	(P=0·023)
Phase 3	15	2·20	1·42	2	1	6
Number of meals sold daily
Phase 1	15	91·00	12·98	93	70	116	5·791
Phase 2	14	80·86	7·76	81	72	98	(P=0·055)
Phase 3	15	87·60	11·18	85	70	108
Fruit ratio: total pieces of fruit sold/number of meals sold
Phase 1	15	0·010	0·011	0·010	0·000	0·031	6·542
Phase 2	14	0·015	0·014	0·013	0·000	0·045	(P=0·038)
Phase 3	15	0·026	0·018	0·022	0·009	0·073