Variable
|
Level
|
Ever engaged in sexual intercourse
|
Univariate
Odd Ratio (95% CI, Probability)
|
Multivariate
Odd Ratio (95% CI, Probability)
|
Yes
|
No
|
No
|
%
|
No
|
%
|
Age in group
|
20–24 years
|
100
|
18.5
|
442
|
81.5
|
|
|
15–19 years
|
84
|
16.3
|
431
|
83.7
|
0.861 (0.626–1.185, p = 0.359)
|
0.903 (0.547–1.493, p = 0.691)
|
Sex
|
Female
|
66
|
11.3
|
519
|
88.7
|
|
|
Male
|
118
|
25.0
|
354
|
75.0
|
2.621 (1.884–3.647, p < 0.001)
|
1.378 (0.857–2.214, p = 0.186)
|
Mother's age
|
< 40 years
|
31
|
16.8
|
154
|
83.2
|
|
|
40–49 years
|
80
|
14.9
|
457
|
85.1
|
0.870 (0.553–1.368, p = 0.546)
|
0.774 (0.451–1.329, p = 0.353)
|
50–59 years
|
64
|
21.3
|
237
|
78.7
|
1.341 (0.835–2.156, p = 0.225)
|
1.098 (0.596–2.023, p = 0.764)
|
60 + years
|
9
|
26.5
|
25
|
73.5
|
1.788 (0.761–4.201, p = 0.182)
|
1.929 (0.642–5.792, p = 0.242)
|
Having siblings
|
None
|
4
|
8.3
|
44
|
91.7
|
|
|
One or more
|
180
|
17.8
|
829
|
82.2
|
2.388 (0.847–6.732, p = 0.100)
|
2.820 (0.902–8.811, p = 0.075)
|
Ethnicity
|
Sinhala
|
122
|
19.6
|
499
|
80.4
|
,
|
|
Tamil
|
28
|
9.4
|
269
|
90.6
|
0.426 (0.275–0.659, p < 0.001)
|
0.390 (0.213–0.715, p = 0.002)
|
Moor
|
34
|
24.5
|
105
|
75.5
|
1.324 (0.858–2.045, p = 0.205)
|
1.329 (0.784–2.252, p = 0.291)
|
Sector
|
Urban
|
82
|
20.1
|
325
|
79.9
|
|
|
Rural
|
55
|
18.0
|
250
|
82.0
|
0.872 (0.597–1.274, p = 0.479)
|
1.279 (0.810–2.020, p = 0.290)
|
Estate
|
47
|
13.6
|
298
|
86.4
|
0.625 (0.423–0.925, p = 0.019)
|
0.807 (0.709–0.978, p = 0.020)
|
Level of education
|
Grade 1–10
|
9
|
16.7
|
45
|
83.3
|
|
|
Passed GCE(O/L)
|
83
|
18.2
|
374
|
81.8
|
1.110 (0.522–2.359, p = 0.787)
|
0.962 (0.394–2.345, p = 0.931)
|
Passed GCE(A/L)
|
47
|
14.6
|
274
|
85.4
|
0.858 (0.393–1.870, p = 0.700)
|
0.576 (0.219–1.516, p = 0.264)
|
Technical/Dip/Undergraduate/Degree
|
45
|
20.0
|
180
|
80.0
|
1.250 (0.569–2.745, p = 0.578)
|
0.848 (0.315–2.279, p = 0.743)
|
Family environment
|
Positive
|
147
|
17.7
|
683
|
82.3
|
|
|
Negative
|
37
|
16.3
|
190
|
83.7
|
0.905 (0.610–1.343, p = 0.619)
|
0.648 (0.405–1.036, p = 0.070)
|
Time spent on online content per day
|
< 30 minutes
|
27
|
12.4
|
190
|
87.6
|
|
|
30–59 minutes
|
63
|
15.4
|
345
|
84.6
|
1.285 (0.792–2.086, p = 0.310)
|
1.350 (0.754–2.418, p = 0.312)
|
60–119 minutes
|
39
|
19.3
|
163
|
80.7
|
1.684 (0.988–2.870, p = 0.056)
|
1.380 (0.735–2.589, p = 0.316)
|
120 + minutes
|
55
|
23.9
|
175
|
76.1
|
2.212 (1.336–3.662, p = 0.002)
|
1.467 (0.794–2.710, p = 0.221)
|
Time spent to communicate per day
|
< 30 minutes
|
36
|
11.3
|
283
|
88.7
|
|
|
30–59 minutes
|
52
|
19.3
|
217
|
80.7
|
1.884 (1.189–2.985, p = 0.007)
|
1.415 (0.828–2.419, p = 0.204)
|
60–119 minutes
|
36
|
16.8
|
178
|
83.2
|
1.590 (0.966–2.618, p = 0.068)
|
1.110 (0.622–1.981, p = 0.724)
|
120 + minutes
|
60
|
23.5
|
195
|
76.5
|
2.419 (1.540–3.800, p < 0.001)
|
1.632 (0.953–2.793, p = 0.074)
|
Current economic activity
|
Employed
|
29
|
23.2
|
96
|
76.8
|
|
|
Student
|
113
|
17.1
|
548
|
82.9
|
0.683 (0.430–1.084, p = 0.105)
|
0.715 (0.403–1.267, p = 0.251)
|
Searching for a job
|
30
|
15.2
|
168
|
84.8
|
0.591 (0.335–1.044, p = 0.070)
|
0.633 (0.322–1.245, p = 0.185)
|
Idling
|
12
|
16.4
|
61
|
83.6
|
0.651 (0.309–1.372, p = 0.259)
|
0.617 (0.248–1.536, p = 0.300)
|
Use of any substance
|
Yes
|
108
|
32.0
|
229
|
68.0
|
|
|
No
|
76
|
10.6
|
644
|
89.4
|
0.250 (0.180–0.348, p < 0.001)
|
0.419 (0.267–0.658, p < 0.001)
|
Ever had love affair
|
Yes
|
174
|
18.5
|
766
|
81.5
|
|
|
No
|
10
|
8.5
|
107
|
91.5
|
0.411 (0.211–0.803, p = 0.009)
|
0.449 (0.211–0.954, p = 0.037)
|
Overall knowledge on SRH
|
Low
|
12
|
5.7
|
198
|
94.3
|
|
|
Medium
|
86
|
15.7
|
461
|
84.3
|
3.078 (1.645–5.759, p < 0.001)
|
2.493 (1.256–4.947, p = 0.009)
|
High
|
86
|
28.7
|
214
|
71.3
|
6.631 (3.517–12.502, p < 0.001)
|
4.284 (2.130–8.618, p < 0.001)
|
Aware of sexual intercourse among peers
|
Yes
|
143
|
32.1
|
303
|
67.9
|
|
|
No
|
41
|
6.7
|
570
|
93.3
|
0.152 (0.105–0.222, p < 0.001)
|
0.224 (0.149–0.337, p < 0.001)
|