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Table 5 Results from the case study on the risk of symptomatic knee OA in obese persons

From: Evaluation of exposure-specific risks from two independent samples: A simulation study

Age Overall risk of symptomatic knee OA in the Oliveria study Risk of symptomatic knee OA for obese persons using the simple product-based method 95% CI for ESRS using a log-based variance Risk of symptomatic knee OA for obese persons using the revised product-based method 95% CI for ESRR using a log-based variance 95% CI for ESRR using a binomial variance
50-59 0.0040 0.0076 0.0052-0.0110 0.0057 0.0038-0.0085 0.0037-0.0077
60-69 0.0087 0.0167 0.0121-0.0230 0.0125 0.0089-0.0175 0.0095-0.0155
70-79 0.0147 0.0282 0.0207-0.0383 0.0211 0.0153-0.0289 0.0168-0.0253
  1. *Probability of being obese was derived from the Niu study (0.371)
  2. **RR of symptomatic knee OA for obese persons was derived from the Niu study (1.91)