Skip to main content

Table 2 Estimates of smoking prevalence for four possible samples from a population with 50% males, ω = 0.5, when the true smoking prevalence is π = 0.2 and male and female smoking prevalence are π M = 0.25 and π F = 0.15, respectively (π D = 0.10)

From: Should adjustment for covariates be used in prevalence estimations?

   

Possible samples

   

1

2

3

4

 

Prop. Male

0.6

0.6

0.4

0.4

Gender-specific prevalence estimator

Male

0.2

0.3

0.15

0.3

Female

0.25

0.1

0.2

0.1

Difference

-0.05

0.2

-0.05

0.2

Prevalence estimator

Crude

0.2200

0.2200

0.1800

0.1800

Adjusted (using π D )

0.2100

0.2100

0.1900

0.1900

Direct adjusted (using )

0.2250

0.2000

0.1750

0.2000

Covariance adjusted

0.2248

0.2008

0.1752

0.1994