Interrater Cohen’s κ coefficient and percentage of agreement and disagreement on smoking status by proxy (SCS) and self report (AAPS) in different ethnic groups
| Ethnic group | Smoker by proxy/Smoker by self report % | 95% CI | Smoker by proxy/ Non-smoker by self report % | 95% CI | Non-smoker by proxy/ Smoker by self report % | 95% CI | Non-smoker by proxy/ Non-smoker by self report % | 95% CI | κ |
|---|---|---|---|---|---|---|---|---|---|
| Hispanics (n = 2096) | 15.87 | 13.79–17.94 | 4.82 | 3.53–6.11 | 2.74 | 1.06–4.42 | 76.58 | 73.51–79.64 | 0.761 |
| Non-Hispanic whites (n = 5346) | 21.79 | 20.54–23.05 | 1.67 | 1.36–1.98 | 1.29 | 1.01–1.58 | 75.25 | 73.90–76.60 | 0.912 |
| African Americans (n = 651) | 28.36 | 23.20–33.52 | 2.17 | 0.73–3.61 | 1.45 | 0.09–2.82 | 68.02 | 62.46–73.58 | 0.914 |
| Asian Americans (n = 1918) | 11.83 | 10.21–13.45 | 2.46 | 1.27–3.65 | 1.86 | 1.04–2.67 | 83.86 | 81.69–86.04 | 0.821 |
CI = confidence intervals.