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Table 1 Patient characteristics

From: Upper gastrointestinal symptoms, psychosocial co-morbidity and health care seeking in general practice: population based case control study

 

Upper GI symptoms

Control patients

Number of patients

13,389

13,389

Sex (n (%))

  

Male

5,965 (44.6)

5,965 (44.6)

Female

7,424 (55.4)

7,424 (55.4)

Age (years)

  

Mean

53.3

53.4

Range

18 - 100

18 - 98

Ethnicity (n (%))

  

native Dutch

9,214 (68.8)

9,280 (69.3)

Western immigrant

721 (5.4)

692 (5.2)

non-Western immigrant

850 (6.4)

778 (5.8)

unknown

2,604 (19.4)

2,639 (19.7)

Level of Education (n (%))

  

low

3,218 (24.0)

2,688 (20.1)

intermediate

6,041 (45.1)

6,097 (45.5)

high

1,350 (10.1)

1,754 (13.1)

unknown

2,780 (20.8)

2,850 (21.3)

  1. low = primary school or no education; intermediate = high school; high = at least college