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Table 1 Background characteristics of the RESPECT population according to the sex

From: The RESPECT study: RESearch on the PrEvalence and the diagnosis of COPD and its Tobacco-related etiology: a study protocol

Characteristics

Total, n = 3133

Male, n = 996

Female, n = 2137

 

(31.8 %)

(68.2 %)

Demographic

   

 Age, mean ± SD

54.0 ± 9.25

53.8 ± 9.52

54.2 ± 9.13

  35-44

620 (19.8)

210 (21.1)

410 (19.2)

  45-54

830 (26.5)

259 (26.0)

571 (26.7)

  55-64

1278 (40.8)

387 (38.9)

891 (41.7)

  65-70

405 (12.9)

140 (14.1)

265 (12.4)

Smoking status

   

 Total

3114

991

2123

 Never smoker

1625 (52.2)

264 (26.6)

1361 (64.1)a

 Current smoker

917 (29.4)

456 (46)

461 (21.7)a

 Ex-smoker

572 (18.4)

271 (27.3)

301 (14.2)a

Socioeconomic status

   

 Total

3114

991

2123

 Total scoreb, mean ± SD

10.71 ± 2.52

10.81 ± 2.58

10.68 ± 2.49

Occupational hazard

2912

934

1978

 Working at dusty job > 1 year

854 (29.3)

361 (38.7)

493 (24.9)a

 Exposed to gas or chemical fumes

782 (26.9)

349 (37.4)

433 (21.9)a

Indoor exposure to biomass fuels

   

 Gas stove use

3114

991

2123

 None

1023 (32.9)

329 (33.2)

694 (32.7)

 Lower use (1–6 times/week)

171 (5.5)

103 (10.4)

68 (3.2)a

 Higher use (>7 times/week)

1920 (67.1)

559 (56.4)

1361 (64.1)a

 Wood/coal stove use

3113

991

2123

 None

2325 (74.7)

705 (71.1)

1620 (76.3)

 Lower use (1–6 times/week)

535 (17.2)

204 (20.6)

331 (15.6)a

 Higher use (>7 times/week)

253 (8.1)

82 (8.3)

171 (8.1)

Current respiratory diseases (means by patient)

3059

967

2092

 COPD

43 (1.4)

21 (2.2)

22 (1.1)

 Asthma

179 (5.9)

23 (2.4)

156 (7.5)a

 Emphysema

11 (0.4)

8 (0.8)

3 (0.1)a

 Chronic bronchitis

322 (10.5)

91 (9.4)

231 (11.0)

  1. aSignificant differences (P < .05) within the sex group (p-value for Pearson Chi-square test)
  2. bSEC (socioeconomic status) total score compute as a sum of marital status, education, income and occupation