Category

n

Total waste

GW

SRe

SFR

Mean

95% CI

Mean

95% CI

Mean

95% CI

Mean

95% CI

WGRs per room (g/room/day)

Low-class hotels^[1]

20

461

371 - 585

347

295 - 486

38

30 - 55

77

9 - 104

Middle-class hotels^[2]

15

980

769 - 1205

517

413 - 621

46

34 - 59

417

299 - 544

High-class hotels^[3]

10

1501

1251 - 1772

837

666 - 1048

86

61 - 111

578

470 - 689

K-W test (H value)

25.582***

19.075***

10.304***

26.138***

Spearman’s ρ

0.843**

0.764**

0.493**

0.824**