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. 2017 Feb 28;12(2):e0172503. doi: 10.1371/journal.pone.0172503

Table 1. Characteristics of the study population (% (N)).

Males Females Total
47.2% (224) 52.8% (251) 100% (475)
Age, years (mean: 58; range: 48–68)
 <55 34.8 (78) 30.7 (77) 32.6 (155)
 55–61 31.7 (71) 38.6 (97) 35.4 (168)
 >61 33.5 (75) 30.7 (77) 32.0 (152)
Working, yes* 75.9 (170) 64.9 (163) 70.1 (333)
Education
 Low (<10 years of school) 46.0 (103) 45.8 (115) 45.9 (218)
 Medium (= 10 years of school) 25.0 (56) 32.7 (82) 29.1 (138)
 High (>10 years of school) 29.0 (65) 21.5 (54) 25.1 (119)
Body mass index, kg/m2*
 Normal (<25) 19.6 (44) 37.1 (93) 28.8 (137)
 Overweight (≥25, <30) 50.9 (114) 35.5 (89) 42.7 (203)
 Obese (≥30) 29.5 (66) 27.5 (69) 28.4 (135)
Overall health (reported)
 Excellent/very good 32.1 (72) 25.1 (63) 28.4 (135)
 Good 60.3 (135) 62.2 (156) 61.3 (291)
 Fair/poor 7.6 (17) 12.7 (32) 10.3 (49)
Hypertension, yes* 39.3 (88) 29.1 (73) 33.9 (161)
Diabetes, yes 6.2 (14) 7.2 (18) 6.7 (32)
Asthma ever, yes 8.0 (18) 11.6 (29) 9.9 (47)
COPD, yes 7.1 (16) 10.4 (26) 8.8 (42)
Difficulties in walking
 Not at all/slight 95.1 (213) 93.2 (232) 94.1 (445)
 Moderate/hard 4.9 (11) 6.8 (17) 5.9 (28)
Pain or physical complaints*
 Not at all/slight 90.2 (202) 81.3 (204) 85.5 (406)
 Moderate/hard 9.8 (22) 18.7 (47) 14.5 (69)
Feeling anxious/depressed*
 Not at all/slight 96.9 (216) 90.0 (226) 93.2 (442)
 Moderate/strong 3.1 (7) 10.0 (25) 6.8 (32)

*p<0.05 in Chi-square test (males vs. females).

COPD: Chronic obstructive pulmonary disease.