| GEE population-averaged model | Number of obs | = | 280 | |
| Group variable: | cluster | Number of groups | = | 20 |
| Link: | log | Obs per group: | ||
| Family: | binomial | min | = | 14 |
| Correlation: | exchangeable | avg | = | 14.0 |
| max | = | 14 | ||
| Wald chi2(1) | = | 4.62 | ||
| Scale parameter: | 1 | Prob > chi2 | = | 0.0316 |
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