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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)

From: Mass drug administration and the sustainable control of schistosomiasis: an evaluation of treatment compliance in the rural Philippines

Profile Response N Non-compliant Odds ratio 95% CI P-valuea
n (%)
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
  1. aChi-square test