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Table 3 Negative binomial regression for frequency of using HDS needles in Khudjand

From: Feasibility of needle and syringe programs in Tajikistan distributing low dead space needles

 

IRR (95% CI)

p value

IRR (95% CI)

p value

Gender (female = 0, male = 1)

2.05 (1.25, 3.37)

0.005

  

Age in years

0.98 (0.95, 1.01)

0.202

  

Completed high school or more (no = 0, yes = 1)

0.72 (0.43, 1.21)

0.217

  

Prefers regular needles to LDS needles = 1.00

1.95 (1.25, 3.02)

0.003

  

Pharmacy main source of syringes

1.48 (0.92, 2.38)

0.106

  

Unable to get LDS

0.55 (0.36, 0.83)

0.004

0.60 (0.39, 0.91)

0.016

Injected homemade opiates

1.48 (0.83, 2.66)

0.187

1.54 (0.85, 2.79)

0.158

Like LDS because they waste less drugs

0.94 (0.63, 1.42)

0.775

  

Like LDS because needles because they are free

1.87 (0.22, 15.69)

0.564

  

Like LDS needles because they make it easier to split drugs accurately

0.70 (0.41, 1.19)

0.187

  

Like LDS needles because less infected blood stays in them

0.81 (0.50, 1.31)

0.397

  

Usually used 12-mm/ 0.5-in. needles

0.91 (0.53, 1.55)

0.730

  

Usually used 1-mL syringes

1.02 (0.66, 1.58)

0.932

  

Number of times injected heroin mixed with dimedrol in the last 30 days?

1.04 (1.02, 1.05)

< 0.001

  

Number of times injected heroin by itself in the last 30 days?

1.02 (0.99, 1.05)

0.166

  

Number of injections in the last 30 days?

1.06 (1.04, 1.08)

< 0.001

1.06 (1.04, 1.08)

< 0.001

Number of days between the start of the study and follow-up interview completed

1.00 (0.98, 1.02)

0.931