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Table 1 Parameter values, taken from a dataset of patients with Chronic Obstructive Pulmonary Disease (COPD), used to simulate the baseline covariates. BMI, Body Mass Index; TimeCOPD, Time since diagnosis of COPD; SD, Standard Deviation

From: Assessing causal treatment effect estimation when using large observational datasets

Baseline Covariate

Mean (SD)

Min – Max

Proportion (%)

BMI

25.62 (4.61)

16.00–40.00

–

Hospitalisation (Hosp = 1)

 Healthy

–

–

40.00

 Overweight

–

–

36.00

 Obese

–

–

26.70

TimeCOPD

 No admission, Healthy

9.59 (9.21)

0.10–35.00

–

 No admission, Overweight

9.13 (8.00)

0.10–30.00

–

 No admission, Obese

7.25 (9.92)

0.10–25.00

–

 Admission(s), Healthy

8.20 (8.03)

0.10–30.00

–

 Admission(s), Overweight

3.21 (2.47)

0.10–10.00

–

 Admission(s), Obese

5.67 (3.87)

0.10–15.00

–

Sputum Type (Z = 1)

–

–

77.65