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Table 3 Modified Poisson regression modeling of socio-demographic risk factors for HCV infection among PWID in Dar es Salaam, Tanzania

From: HIV/HCV co-infection and associated risk factors among injecting drug users in Dar es Salaam, Tanzania: potential for HCV elimination

Variable

Category

PR (95%CI)

APR (95%CI)

p value

Age groups (years)

15–24

1

1

 

25–34

2.14 (0.80; 5.74)

2.11 (0.81; 5.76)

0.129

35 and above

2.35 (0.88; 6.24

2.35 (0.89; 6.27)

0.088

Sex

Male

1

1

 

Female

0.95 (0.41; 2.18)

0.98 (0.43; 2.25)

0.950

Education level

No formal

1

1

 

Primary

0.98 (0.42; 2.25)

0.97 (0.43; 2.22)

0.950

Secondary and above

0.99 (0.40; 2.41)

0.97 (0.40; 2.36)

0.954

Marital status

Never married

1

1

 

Married/cohabiting

0.84 (0.48; 1.46)

0.81 (0.46; 1.41)

0.456

Divorced/separated

1.40 (0.94; 2.09)

1.31 (0.87; 1.98)

0.201

Time lived in Dar es Salaam

Born and raised

1

1

 

Not born

1.19 (0.80; 1.75)

1.20 (0.82; 1.78)

0.342

Income past month (TZS)

< 50,000

1

1

 

50,000–120,000

1.44 (0.78; 2.64)

1.42 (0.77; 2.60)

0.253

121,000–200,000

0.88 (0.41; 1.89)

0.83 (0.38; 1.82)

0.636

> 200,000

1.55 (0.89; 2.70)

1.50 (0.86; 2.62)

0.152

Currently living with

Alone

1

1

 

Family

1.04 (0.69; 1.57)

1.06 (7.00; 1.60)

0.783

Partner

0.72 (0.38; 1.34)

0.71 (0.38; 1.33)

0.292

Friends

0.56 (0.18; 1.73)

0.59 (0.19; 1.83)

0.362