Model -1 Model -2 Model -3
Characteristics Characteristics (n) Self-reported current STI symptoms concordant with lab diagnosed STI n (%)# AOR (95% CI) Self-reported inconsistent condom use concordant with lab diagnosed STI n(%) # AOR (95% CI) Concordant self-reported symptom / risk n(%) # AOR (95% CI)
Age
15-25 years
26-35 years
>35 years

1933
1381
580

1716 (88.4)
1115 (79.6)
439 (78.9)
 
Ref
0.8 (0.5-1.4)
1.0  (0.5-1.9)

563 (29.8)
358 (28.2)
172 (30.9)

Ref
1.1 (0.7-1.7)
0.9 (0.5-1.6)

1811 (92.0)
1224 (88.2)
478 (82.7)

Ref
1.4 (0.8-2.4)
1.1 (0.6-2.2)
Educational status
Illiterates
1-5 Grade  
6-12 Grade 
> 12 Grade  

718
454
2273
450

567 (76.1)
369 (80.8)
1934 (84.9)
400 (90.4)

Ref
1.3 (0.7-2.2)
1.6 (1.1-2.4)*
3.2 (1.7-5.9)*

176 (27.9)
120 (28.3)
654 (30.4)
143 (27.2)

Ref
0.8 (0.5-1.4)
0.8 (0.5-1.2)
1.1 (0.7-1.7)

617 (82.1)
404 (88.5)
2072 (90.5)
421 (93.2)

Ref
1.6 (0.8-3.1)
1.6 (1.0-2.5)*
2.5 (1.2-5.3)*
Duration of sexual exposure
0-5 years
6-10 years
>10 years


1020
1171
1700


930 (91.7)
992 (85.8)
1345 (78.4)


Ref
0.6 (0.3-0.9)*
0.3 (0.2-0.6)*


274 (26.8)
341 (30.1)
477(30.3)


Ref.
0.7 (0.56-1.1)
0.6 (0.41-1.0)


981 (95.0)
1057 (90.1)
1472 (85.4)


Ref
0.5 (0.2-1.0)
3.0 (0.1-0.6)*
Marital status
Unmarried
Married

2603
1292

2216 (84.9)
1054 (80.9)

Ref
1.0 (0.7-1.4)

847 (32)
246 (22.5)

Ref
1.7 (1.2-2.3)*

2385 (90.9)
1129 (85.2)

Ref.
0.7 (0.4-1.0)
Substance use
No
Yes

1356
2520

1115 (82.7)
2138 (84.3)

Ref
1.2 (0.8-1.6)

470(35.9)
616 (26.2)

Ref
1.5 (1.1-1.9)*

1206 (88.2)
2290 (89.6)

Ref.
1.3 (0.9-1.9)
STI treatment history
No
Yes

1232
1834

1056 (86.2)
1482 (82.0)

Ref
0.7 (0.5-0.9)*

328(26.2)
608(35.1)

Ref
0.5 (0.4-0.7)

1112 (90.5)
1634 (90.9)

Ref.
0.8 (0.5-1.1)
Knowledge of STI
No
Yes

1081
2814

903 (82.3)
2367 (84.4)

Ref
1.2 (0.8-1.7)

318 (28.6)
775 (29.7)

Ref
1.1 (0.8-1.5)

964 (87.1)
2550 (90.2)

Ref.
1.4 (0.9-2.2)*
STI/HIV information exposure
No
Yes


746
2320


630 (85.1)
1908 (83.0)


Ref
1.1 (0.7-1.7)


231 (29.5)
705 (32.5)


Ref
1.4 (1.0-2.0)*


666 (90.6)
2080 (88.9)


Ref.
0.9 (0.6-1.5)
# For the percentage value, the numerator consists of concordance for self-report & laboratory diagnosis, both when laboratory diagnosis is positive and negative. The denominator consists of MSM defined by characteristics. All % values derived after applying sample weights. Overall N=3895, which included missing values.
*p<.05 CI- Confidence Interval AOR-Adjusted Odds Ratio
The dependant variable in the Model 1 is created by matching “self-reported current STI symptom” with “laboratory diagnosed o STIs” (coded as 1 if matching and coded as 0 if not matching).
The dependant variable in the Model 2 is created by matching “self-reported inconsistent condom use” with “laboratory diagnosed STI “(coded as 1 if matching and coded as 0 if not matching).
The dependant variable in Model 3 “Concordant self-reported symptom/risk” was created by matching both the dependant variables of Model 1 and Model 2 (coded as 1 if both/or any one of them were concordant and coded as 0 if both were discordant).
Table 4: Predictors of concordance of self-reports with laboratory diagnosis of STI among MSM, Andhra Pradesh, Tamil Nadu and Maharashtra, India.