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Table 3 Description of stratum-specific and overall restriction criteria

From: Design of the Indian NCA study (Indian national collaboration on AIDS): a cluster randomized trial to evaluate the effectiveness of integrated care centers to improve HIV outcomes among men who have sex with men and persons who inject drugs in India

 

Stratum-specific

Overall

 

MSM

PWID

 

Geographical Restrictions

 Tamil Nadu (3)

3 sites distributed at a ratio of 2:1 (Madurai/Chennai in separate arms)

  

 Andhra Pradesh (3)

3 sites distributed at a ratio of 2:1

  

 Karnataka (2), Bhopal, Delhi

4 sites distributed with at least one site in each arm

  

 Northeast (5)

 

5 sites distributed at a ratio of 3:2

 

 North (4)

 

4 sites distributed at a ratio of 2:2

 

 West/Central India (3)

 

3 sites distributed at a ratio of 2:1

 

Restrictions Based On Outcomes

 HIV prevalence

<1.5 %a

<2 %a

<2 %c

 Percentage who had HIV test in the prior 12 months [PRIMARY OUTCOME]

<5 %a

<5 %a

<5 %c

 Percentage of HIV positive aware of status

<10 %a,b

<10 %a,b

<10 %c

 Percentage of HIV positive seen HIV provider in past 6 months

<10 %a,b

<10 %a,b

<10 %c

 Percentage of HIV positive currently on antiretroviral therapy

<10 %a,b

<10 %a,b

<10 %c

 Percentage of HIV positive with undetectable HIV RNA

<9 %a

<9 %a

<9 %c

  1. aRestrictions placed on only RDS-weighted proportions; RDS-I estimator used for PREVALENCE and TEST; RDS-II estimator used for other outcomes because RDS-I estimator could not be calculated
  2. bRestriction was across three outcomes (Proportion of HIV positive aware of status, Proportion of HIV positive seen HIV provider in past 6 months, Proportion of HIV positive currently on antiretroviral therapy); Only those with values >10 % in 2 of the three outcomes were excluded
  3. cRestrictions placed on RDS-weighted and unweighted proportions