Table 4: Bivariate and multivariable logistic regression analysis result for significant variables (p ≤ 0.25) in bivariate analysis a study of scabies among school children in the primary schools of Raya Alamata district , June 2018 (n = 495).

Variable

Presence of scabies

Crude OR [75% CI]

Adjusted OR [95% CI]

Yes

No

Age in years 6-10

 10-15

 Above 15

10 (7.5)

43 (14.5)

11 (19.3)

131 (92.50)

254 (85.50)

46 (80.70)

1 [Ref.]

2.22 [1.08, 4.55]*

3.13 [1.249, 7.86]*

1 [Ref.]

1.19 [0.23, 6.20]

0.70 [0.11, 4.61]

Sex (495)

Male

Female

 

37 (57.81)

27 (42.19)

 

241 (56.05)

189 (43.95)

 

1 [Ref.]

0.93 [0.68, 1.27]

 

 

Educational status of children

Grade 1-4

Grade 5-8

 

27

37

 

201

230

 

1 [Ref.]

1.20 [0.88, 1.64]

 

Parent educational status

Primary education

Writing and reading

Illiterate

 

7 (10.94)

16 (25.00)

41 (64.06)

 

43 (9.98)

115 (26.68)

273 (63.34)

 

1 [Ref.]

0.85 [0.49, 1.50]

0.92 [0.56, 1.53]

 

Religion

Orthodox

Muslim

Other’s (protestant 2 and 2 catholic)

 

46 (71.88)

18 (28.13)

 

348 (80.74)

79 (18.33)

4 (0.93)

 

1 [Ref.]

1.72 [1.21, 2.45]*-

-

 

Occupation of head of HH

Farmer

Housewife

Merchant

 

52 (81.25)

7 (10.94)

5 (10.93)

 

297 (68.91)

63 (14.62)

71 (16.47)

 

1 [Ref.]

0.63 [0.39, 1.04]

 

 

1 [Ref]

1.48 [0.37, 5.96]

 

Income of the family

> 1553 birr Good

< 1553 birr Low

 

11 (7.19)

53 (82.81)

 

178 (41.30)

253 (58.70)

 

1 [Ref.]

3.39 [2.28, 5.04]*

 

1 [Ref.]

1.63 [0.42, 6.35]

Family size

< 5

> = 5

 

25 (39.06)

39 (60.94)

 

143 (33.18)

288 (66.82)

 

1 [Ref.]

0.77 [0.56, 1.06]

 

 

Family history of scabies

No

Yes

 

17 (26.56)

47 (73.44)

 

294 (68.21)

137 (31.79)

 

1 [Ref]

5.93 [4.20, 8.39]*

 

1 [Ref.]

4.73 [1.52, 14.69]*

Animal share same house with family

No

Yes

 

21 (32.81)

43 (67.19)

 

165 (38.28)

266 (61.72)

 

1 [Ref.]

1.27 [0.92, 1.76]

 

 

 

Frequency of shower

1-7 days

8-14 days

15-30 days

> 30 days

 

31 (48.44)

2 (3.13)

22 (34.38)

9 (14.06)

 

322 (74.71)

16 (3.71)

77 (17.87)

16 (3.71)

 

1 [Ref.]

 

2.97 [2.09, 4.22]*

5.84 [3.45, 9.89]*

 

1 [Ref.]

0.30 [0.03, 2.93]

1.75 [0.58, 5.33]

0.97 [0.17, 5.40]

Detergent used for shower

Soap

Only water

 

28 (43.75)

36 (56.25)

 

293 (67.98)

138 (32.02)

 

1 [Ref]

 2.74 [1.99, 3.76]*

 

1 [Ref.]

 0.38 [0.12, 1.17]

Have you bathed someone else in the previous 6 weeks?

No

Yes

 

 

49 (76.56)

15 (23.44)

 

 

400 (92.81)

31 (7.19)

 

 

1 [Ref.]

3.95 [2.64, 5.90]*

 

 

1[Ref.]

1.05[0.24, 4.71]

Wash clothes regularly

Yes

No

 

1 (1.56)

63 (98.44)

 

5 (1.16)

426 (98.84)

 

 

 

 

Share cloth with others

No

Yes

 

6 (9.38)

58 (90.63)

 

363 (84.22)

68 (15.78)

 

1 [Ref.]

51.60 [30.80, 86.47]*

 

1 [Ref.]

17.61 [4.98, 62.23]*

Shorten of nail regularly

No

Yes

 

46 (71.88)

18 (28.13)

 

178 (41.30)

253 (58.70)

 

1 [Ref.]

0.28 [0.20, 0.39]*

 

1 [Ref.]

0.47 [0.17, 1.33]

When do you change your cloth?

Every other day

Every week

Every two week

More than a month

 

3 (4.69)

14 (21.88)

38 (59.38)

9 (14.06)

 

12 (2.78)

23 (5.34)

224 (51.97)

160 (37.12)

 

1 [Ref.]

0.17 [0.07, 0.41]*

0.08 [0.05, 0.15]*

0.32 [0.18, 0.55]*

 

1 [Ref.]

4.03 [0.26, 62.27]

1.48 [0.18, 11.91]

1.02 [0.15, 6.83]

Availability of water supply

No

Yes

 

55 (85.94)

9 (14.06)

 

125 (29.00)

306 (71.00)

 

1 [Ref.]

0.07 [0.04, 0.10]*

 

1 [Ref.]

0.20 [0.03, 1.17]

Source of home water

Pipe water

well water

Spring water

River water

 

10 (15.63)

22 (34.40)

27 (42.19)

5 (7.81)

 

258 (59.86)

85 (19.72)

59 (13.69)

29 (6.73)

 

1 [Ref.]

 11.63 [7.04]

14.76 [9.02, 24.14]*

5.56 [2.78, 11.12]*

 

1 [Ref.]

 2.21 [0.15, 33.22]

3.38 [0.21, 55.06]

1.70 [0.08, 37.76]

Distance of source water to home in walk

Less than half an hour

From half an hour to two hours

From 2 hrs to 4 hrs walk

Longer than 4 hrs walk

 

 

8 (12.50)

3 (4.69)

15 (23.44)

38 (59.38)

 

 

275 (63.81)

19 (4.41)

57 (13.23)

80 (18.56)

 

 

1 [Ref.]

 

9.05 [5.32, 15.38]*

16.33 [10.20, 26.14]*

 

 

1 [Ref.]

 

1.08 [0.08, 14.18]

0.86 [0.06, 11.56]

Do you Sleep with scabies ill person?

No

Yes

 

11 (17.19)

53 (82.81)

 

372 (86.51)

58 (13.49)

 

1 [Ref.]

30.90 [20.42, 46.76]*

 

1 [Ref.]

3.74 [1.11, 12.62]*

Sharing of bed to others

No

Yes

 

7 (10.94)

57 (89.06)

 

339 (78.65)

92 (21.35)

 

1 [Ref.]

30.00 [18.56, 48.49]*

 

1 [Ref.]

4.45 [1.04, 19.02]*

Know scabies transmission

No

Yes

 

45 (70.31)

19 (29.69)

 

250 (58.00)

181 (42.00)

 

1 [Ref.]

0.58 [0.42, 0.81]*

 

1 [Ref.]

0.68 [0.24, 1.93]

*significant variable at p-value < 0.25 in bivariate and < 0.05 at multivariate.