Table 4 Multivariable model to test the factors associated with the absence of genito-anal injuries

Age (N = 1447)

<18 years

-

18 - 44 years

1.9 (1.5 - 2.4)

0.000

1.4 (0.9 - 2.0)

0.157

≥45 years

1.1 (0.6 - 1.9)

0.835

0.5 (0.2 - 1.1)

0.078

Virgin (N = 1311)

No

-

0.000

-

Yes

0.4 (0.3 - 0.6)

0.4 (0.3 - 0.7)

0.000

Previously pregnant (N = 1131)

No

-

0.011

Yes

1.4 (1.1 - 1.8)

Disability (N = 1472)

No

-

0.329

Yes

1.5 (0.7 - 3.6)

Under influence of drugs or alcohol (N = 1114)

No

-

0.945

Yes

1.0 (0.5 - 1.8)

Length of time perpetrator detained victim (N = 1411)

Less than a day

-

1 day of more

0.8 (0.6 - 1.1)

0.182

Multiple perpetrators (N = 1437)

No

-

0.022

-

Yes

0.7 (0.5 - 1.0)

0.6 (0.4 - 0.9)

0.017

Perpetrator victim relationship (N = 1414)

Any relative

-

Current or ex-partner

1.6 (1.0 - 2.7)

0.062

Stranger or someone known only slightly/by sight

1.2 (0.8 - 1.9)

0.356

Some other known person

1.4 (0.9 - 2.2)

0.154

Perpetrator armed (N = 1442)

No

-

Yes

1.3 (1.0 - 1.6)

0.042

Victim hurt with weapon (N = 517)

No

-

Yes

0.7 (0.5 - 1.1)

0.124

Victim threatened (N = 1472)

No

-

Yes

1.2 (0.9 - 1.4)

0.192

Physical force used (N = 1429)

No

-

Yes

1.1 (0.9 - 1.4)

0.435

Victim resisted (N = 1472)

No

-

Yes

1.0 (0.8 - 1.3)

0.898

Number of penetrations (N = 1272)

1

-

>1

0.8 (0.6 - 1.0)

0.035

Time from rape to examination (N = 1262)

-

<2 days

-

1.5 (1.0 - 2.3)

0.035

2 - 10 days

1.0 (0.7 - 1.4)

0.874

Doctor's qualification (N = 1223)

Medical degree

-

-

Higher than medical degree

0.6 (0.4 - 0.9)

0.010

0.6 (0.4 - 0.9)

0.020