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Table 2 Comparison of PATH Study COPDa prevalence with NHANESb COPD prevalencec

From: Association of tobacco product use with chronic obstructive pulmonary disease (COPD) prevalence and incidence in Waves 1 through 5 (2013–2019) of the Population Assessment of Tobacco and Health (PATH) Study

Wave 1 PATH Study 2013–14

NHANES 2013–2014

Question

PATH Study ID

Response options

Unweighted Ns

Weighted prevalence (SE)

Question

NHANES ID

Response options

Unweighted Ns

Weighted prevalence (SE)

Has a doctor or other health professional ever told you that you had any of the following lung or respiratory conditions? COPD

R01_AX0119_01

Yes

No

1076

13,179

5.1% (0.3)

94.9% (0.3)

Has a doctor or other health professional ever told [you/SP] that [you have/s/he/SP has] COPD?

MCQ160o

Yes

No

186

3625

5.1% (0.8)

94.9% (0.8)

Has a doctor or other health professional ever told you that you had any of the following lung or respiratory conditions? Chronic bronchitis

R01_AX0119_02

Yes

No

876

13,379

4.4% (0.2)

95.7% (0.2)

Has a doctor or other health professional ever told [you/SP] that [you/s/he]...had chronic bronchitis?

MCQ160k

Yes

No

249

3560

6.9% (0.5)

93.1% (0.5)

Has a doctor or other health professional ever told you that you had any of the following lung or respiratory conditions? Emphysema

R01_AX0119_03

Yes

No

533

13,722

2.4% (0.1)

97.6% (0.1)

Has a doctor or other health professional ever told [you/SP] that [you/s/he]...had emphysema?

MCQ160g

Yes

No

90

3722

2.5% (0.5)

97.5% (0.5)

(Derived) Ever been diagnosed with COPD, chronic bronchitis, or emphysema

N/A

Yes

No

1699

12,556

8.4% (0.3)

91.6% (0.3)

(Derived) Ever been diagnosed with COPD, chronic bronchitis, or emphysema

N/A

Yes

No

383

3424

10.5% (0.9)

89.5% (0.9)

  1. a COPD: Chronic Obstructive Pulmonary Disease
  2. bPATH: Population Assessment of Tobacco and Health; NHANES: National Health and Nutrition Examination Survey
  3. cPrevalence weighted to reflect estimate for the United States adult population. PATH Study data weighted using Wave 1 cross-sectional weights
  4. ID: Identification, N: number, SE: Standard Error, Y/N: Yes/No, SP: sampled person
  5. PATH Study unweighted Ns and prevalence estimates differ slightly from Table 1 as respondents with a history of “other respiratory disease” were not excluded, so as to mirror NHANES methods