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Table 1 Clinical characteristics of study populations

From: Suicidal ideation and suicide attempts among asthma

  No asthma (n = 222,372) Asthma (n = 6372) P value
Age (years) 51.8 ± 17.0 61.1 ± 17.8 <0.001
Sex (Male %) 100,089 (45.0) 2605 (40.9) <0.001
Smoking status    <0.001
 Smoker 81,882 (36.8) 2562 (40.2)  
 Non-smoker 140,490 (63.2) 3810 (59.8)  
Alcohol drinking 59,896 (26.9) 1050 (16.5) <0.001
Regular exercise 114,714 (51.6) 3047 (47.8) <0.001
Marital status    <0.001
 Married 152,061 (68.4) 3844 (60.4)  
 Single 33,101 (14.9) 683 (10.7)  
 Divorced/separated/widowed 37,072 (16.7) 1839 (28.9)  
Job 140,886 (63.4) 2914 (45.8) <0.001
Family income    <0.001
 Low 52,214 (24.3) 2705 (43.9)  
 Moderate-low 43,285 (20.2) 1258 (20.6)  
 Moderate-high 70,830 (33.0) 1303 (21.1)  
 High 48,400 (22.5) 887 (14.4)  
Education    <0.001
 ≤Elementary 57,240 (25.8) 3067 (48.2)  
 Middle school 25,346 (11.4) 811 (12.8)  
 High school 64,235 (29.0) 1197 (18.8)  
 ≥College 75,165 (33.8) 1282 (20.2)  
DM 11,623 (5.2) 306 (4.8) 0.075
Hypertension 53,068 (23.9) 2523 (39.6) <0.001
Stroke 4305 (1.9) 252 (4.0) <0.001
Arthritis 29,761 (13.4) 1884 (29.6) <0.001