SMW components\

Income group

Low income

Middle income

High income

Total

Wilcoxon signed rank test

Wet season

Dry season

Wet season

Dry season

Wet season

Dry season

Wet season

Dry season

Z

p-valueb

Pharmaceutical waste

4.31 × 10−3

1.10 × 10−3

0.81 × 10−3

1.06 × 10−3

1.97 × 10−3

0.98 × 10−3

2.79 × 10−3

1.06 × 10−3

3.052

0.002

Sharps waste

0.06 × 10−3

0.04 × 10−3

0.05 × 10−3

0.03 × 10−3

0.04 × 10−3

0.03 × 10−3

0.05 × 10−3

0.04 × 10−3

1.938

0.053

Solid medical waste

4.36 × 10−3

1.15 × 10−3

0.87 × 10−3

1.07 × 10−3

2.01 × 10−3

1.01 × 10−3

2.84 × 10−3

1.09 × 10−3

3.129

0.002

Offensive waste

34.89 × 10−3

10.65 × 10−3

38.86 × 10−3

10.28 × 10−3

14.28 × 10−3

2.90 × 10−3

30.97 × 10−3

8.61 × 10−3

4.960

0.000