Table 2 Univariate analysis of the association of demographic and socio-economic factors, history of MDA participation, and schistosomiasis infection with non-compliance to the last MDA conducted in Northern Samar, the Philippines (n = 2146)

Age (years)

18–30

447

158 (35.4)

1.00

31–40

557

134 (24.1)

0.54

0.39–0.74

<0.001

41–50

526

106 (20.2)

0.42

0.30–0.58

<0.001

> 50

616

194 (31.5)

0.83

0.62–1.12

0.233

Sex

Male

1029

223 (21.7)

1.00

Female

1117

369 (33.0)

2.04

1.64–2.59

<0.001

Education

None - Elementary

1343

356 (26.5)

1.00

High School

625

181 (29.0)

1.16

0.90–1.48

0.253

Vocational, College, Post-graduate

178

55 (30.9)

1.10

0.72–1.66

0.660

Occupation

None

1038

348 (33.5)

1.00

Farmer

581

111 (19.1)

0.41

0.31–0.55

<0.001

Fishing

82

25 (30.5)

0.73

0.39–1.37

0.324

Others

445

108 (24.3)

0.49

0.36–0.68

<0.001

Wealth status

Wealthy

568

153 (26.9)

1.00

Medium

1309

351 (26.8)

1.04

0.79–1.38

0.770

Poor

269

88 (32.7)

1.37

0.93–2.03

0.110

Participation in at least one of the last 3 previous MDA

No

952

392 (41.2)

1.00

Yes

1194

200 (16.8)

0.25

0.19–0.32

<0.001

History of schistosomiasis infection based on most recent stool survey

No infection

1552

449 (28.9)

1.00

Mild

517

124 (24.0)

0.71

0.54–0.93

0.014

Moderate

55

12 (21.8)

0.58

0.27–1.24

0.160

Severe

22

7 (31.8)

1.21

0.42–3.49

0.730

Informed about MDA activity at least one week prior to MDA

No

78

63 (80.8)

1.00

Yes

2068

529 (25.6)

0.05

0.03–0.11

<0.001