Characteristics

Total

IgG + ve¹

Wald Χ²

df

p-value

OR (95% CI)

Age groups

1 - 5 years

391

122 (31)

1

6 - 10 years

258

143 (55)

1.84

1

<0.001

2.74 (1.98 - 3.80)

More than 11 years

251

154 (61)

54.7

1

<0.001

3.50 (2.51 - 4.88)

Sex

Female

439

192 (44)

1

Male

46

227 (49)

2.74

1

0.09

1.25 (0.96 - 1.62)

Water purification

Yes

235

91 (39)

1

No

665

328 (49)

7.79

1

0.01

1.54 (1.14 - 2.09)

Hand washing

Yes

497

212 (43)

1

No

403

207 (51)

6.77

1

0.01

1.42 (1.09 - 1.85)

Average monthly income

More than Rs 15,000

168

65 (39)

1

Rs 10,001 - 15,000

179

86 (48)

3.08

1

0.08

1.46 (0.96 - 2.25)

Rs 8000 - 10,000

315

136 (43)

0.91

1

0.34

1.20 (0.82 - 1.76)

Less than Rs 8000

238

132 (55)

10.97

1

0.001

1.97 (1.32 - 2.95)

Anemia

Present

142

36 (25)

1

Absent

758

383 (50)

28.7

1

<0.001

3.02 (2.01 - 4.52)

Thrombocytopenia

Present

18

3 (17)

1

Absent

882

416 (47)

5.6

1

0.02

4.50 (1.29 - 15.66)

Hepatosplenomegaly

Absent

770

354 (46)

1

Present

130

65 (50)

0.72

1

0.4

1.20 (0.80 - 1.70)