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Table 1 Characteristics of the participants and prevalences of infections

From: Social networks in relation to self-reported symptomatic infections in individuals aged 40–75 - the Maastricht study –

Individual characteristics

% (n = 3004) or Mean (SD)

Sex

- Men

51.2 (n = 1537)

- Women

48.8 (n = 1467)

Age

60.0 (8.2)

Educational level

- Low

33.4 (n = 980)

- Medium

28.1 (n = 823)

- High

38.5 (n = 1129)

Employment status

- Employed

39.0 (n = 1172)

- Unemployed/ retired

51.0 (n = 1531)

- Not known

10.0 (n = 301)

Diabetes status

- No type 2 diabetes

71.3 (n = 2141)

- Type 2 diabetes

28.7 (n = 863)

Body Mass Index

- Normal (< 25 kg/m2)

35.6 (n = 1067)

- Overweight (25–30 kg/m2)

42.3 (n = 1268)

- Obese (≥30 kg/m2)

22.2 (n = 666)

Alcohol consumption

- Non-consumers (no alcohol use)

18.3 (n = 537)

- Low consumers ((≤7 glasses per week for women; ≤ 14 glasses per week for men)

56.0 (n = 1645)

- High consumers (>  7 glasses per week for women; > 14 glasses per week for men)

25.7 (n = 755)

Smoking status

- Never

34.6 (n = 1020)

- Former

52.0 (n = 1529)

- Current

13.4 (n = 394)

Infections (self-reported, past 2 months)

- Upper respiratory infection (URI)

31.1 (n = 921)

- Lower respiratory infection (LRI)

11.5 (n = 339)

- Urinary tract infection (UTI)

5.7 (n = 170)

- Gastrointestinal tract infection (GI)

12.5 (n = 370)

Month of assessment

- May–October

52.7 (n = 1584)

- November–April

47.3 (n = 1420)