Table 2

Baseline characteristics of participants who reported at least one respiratory tract infection (RTI)*

ControlIntervention
Female506/920 (55.0%)491/852 (57.6%)
Age56.28 (12.95)56.76 (12.93)
Ever smoked448/918 (48.8%)393/850 (46.2%)
Comorbid condition329/912 (36.1%)324/850 (38.1%)
Number of times consulted a doctor about RTI in the previous year0.54 (1.17)0.54 (1.19)
Household composition (%)
 Alone110/920 (12.0)98/851 (11.5)
 Spouse/partner612/920 (66.5)589/851 (69.2)
 Other adult(s)96/920 (10.4)87/851 (10.2)
 Children aged under 16 years102/920 (11.1)77/851 (9.1)
Highest qualifications
 No formal educational qualifications66/920 (7.2)62/852 (7.3)
 Cses/o'levels/gcses (or similar)166/920 (18.0)143/852 (16.8)
 A'levels (or similar)102/920 (11.1)88/852 (10.3)
 Diploma/other vocation qualification203/920 (22.1)196/852 (23.0)
 Degree139/920 (15.1)148/852 (17.4)
 Postgraduate or professional qualification244/920 (26.5)215/852 (25.2)
  • *Data are means (SD) or numbers (%).