Table 5. Test-retest reliability of key CHIWOS variables.
| Demographic Characteristics | Kappa*/ICC# | 95% CI of Kappa statistic or ICC | Strength of agreement |
|---|---|---|---|
| Age at interview | 1 | (1, 1) | Almost Perfect |
| Gender identity | 0.78 | (0.37, 1.00) | Substantial |
| Sexual orientation | 1 | (1, 1) | Almost Perfect |
| Ethnicity | 0.93 | (0.79, 1.00) | Almost Perfect |
| Ever incarcerated | 1 | (1, 1) | Almost Perfect |
| Injection drug use history (ever) | 0.96 | (0.88, 1.00) | Almost Perfect |
| Clinical characteristics | |||
| HCV co-infection | 0.93 | (0.79, 1.00) | Almost Perfect |
| HBV co-infection | 0.72 | (0.36, 1.00) | Substantial |
| Median years living with HIV | 0.93 | (0.86, 0.97) | NA |
| Received HIV medical care in last year | 1 | (1, 1) | Almost Perfect |
| Currently taking ART | 1 | (1, 1) | Almost Perfect |
| Undetectable viral load (self-report) | 1 | (1, 1) | Almost Perfect |
| Most recent CD4 (self-report) | 0.71 | (0.41, 1.00) | Substantial |
| Perceived women-centred care by HIV Doctor or Clinic | |||
| Perceive care by HIV doctor to be women-centred | 0.67 | (0.41, 0.93) | Substantial |
| Perceive care at HIV clinic to be women-centred | 0.6 | (0.32, 0.88) | Moderate |
| Women-centred care is important to me | 0.49 | (0.16, 0.81) | Moderate |
| Satisfied with the care received from HIV doctor | 0.8 | (0.69, 1.00) | Substantial |
| Satisfied with the care received from HIV clinic | 0.86 | (0.75, 1.00) | Almost Perfect |
| Care satisfaction depends on how women-centred it is | 0.66 | (0.40, 0.93) | Substantial |
CHIWOS, Canadian HIV Women’s Sexual and Reproductive Health Cohort Study; CI, confidence intervals; ICC, intraclass correlation coefficient
Note:
*Standard Kappas were calculated for nominal variables, weighted Kappas for ordinal variables and prevalence adjusted Kappa for rare observations.
#ICCs were calculated for continuous variables; strength of agreement not available.