From: The influence of interviewers on survey responses among female sex workers in Zambia
Month 1 follow-up, tested in past 30 days | Month 4 follow-up, tested in past 30 days | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1. No covariates | ||||||||||||
Study arm A | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||
Study arm B | 1.07 | [1.02–1.12] | 1.07 | [0.94–1.21] | 1.07 | [0.95–1.20] | 1.11 | [1.03–1.21] | 1.13 | [0.98–1.31] | 1.14 | [0.98–1.31] |
Study arm C | 0.95 | [0.89–1.01] | 0.95 | [0.84–1.07] | 0.94 | [0.85–1.05] | 1.06 | [0.97–1.15] | 1.07 | [0.95–1.21] | 1.08 | [0.96–1.22] |
Female vs. male interviewer | 0.97 | [0.91–1.04] | 1.39 | [0.70–2.73] | ||||||||
Interviewer random effects | Yes | Yes | Yes | Yes | ||||||||
2. Age | ||||||||||||
18–24 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||
25–29 | 0.96 | [0.92–1.02] | 0.96 | [0.91–1.03] | 0.96 | [0.91–1.03] | 1.00 | [0.93–1.08] | 1.01 | [0.93–1.10] | 1.01 | [0.93–1.10] |
30–34 | 0.94 | [0.88–1.01] | 0.94 | [0.87–1.02] | 0.94 | [0.87–1.02] | 0.99 | [0.91–1.08] | 0.97 | [0.91–1.04] | 0.97 | [0.91–1.04] |
35+ | 0.94 | [0.87–1.01] | 0.94 | [0.85–1.03] | 0.94 | [0.85–1.03] | 0.92 | [0.81–1.05] | 0.91 | [0.80–1.03] | 0.91 | [0.80–1.03] |
Female vs. male interviewer | 0.97 | [0.91–1.04] | 1.39 | [0.70–2.74] | ||||||||
Interviewer random effects | Yes | Yes | Yes | Yes | ||||||||
3. Sexual abuse | ||||||||||||
Any sexual abuse as adult | 1.01 | [0.97–1.06] | 1.01 | [0.97–1.06] | 1.01 | [0.97–1.06] | 0.92 | [0.86–0.98] | 0.98 | [0.90–1.05] | 0.97 | [0.90–1.05] |
Female vs. male interviewer | 0.97 | [0.91–1.04] | 1.38 | [0.70–2.72] | ||||||||
Interviewer random effects | Yes | Yes | Yes | Yes |