Incidence, healthcare-seeking behaviours, antibiotic use and natural history of common infection syndromes in England: results from the Bug Watch community cohort study

Table 4 Impacts on adult health-related quality of life

Infection syndrome	Number of infection syndromes^a (Total 1131)	Worst day in syndrome by EQ. 5D index score, mean (s.d)	QALD loss per day, mean (s.d.)	QALD loss per syndrome^c
Infection syndrome	Number of infection syndromes^a (Total 1131)	Worst day in syndrome by EQ. 5D index score, mean (s.d)	QALD loss per day, mean (s.d.)	Mean (95% CI)	Median (IQR)
Respiratory tract^b	663	3·2 (6·9)	0·06 (0·28)	0·7 (0·6–0·8)	0·4 (0·2–0·7)
Gastrointestinal	188	3·0 (9·7)	0·06 (0·34)	0·4 (0·3–0·5)	0·2 (0·1–0·4)
Mouth/Dental	102	3·5 (6·4)	0·14 (0·27)	1·3 (1·1–1·7)	0·8 (0·5–1·5)
Skin/Soft tissue	77	3·3 (6·1)	0·02 (0·29)	0·3 (0·2–0·6)	0·1 (0·1–0·3)
Eye	52	6·0 (16·0)	-0·01 (0·28)	-0·1 (0--0·2)	-0·1 (0--0·1)
Urinary tract	49	2·7 (5·9)	0·09 (0·09)	0·5 (0·3–0·7)	0·3 (0·2–0·5)

CI Confidence interval, IQR Interquartile range, QALD Quality-adjusted life day, sd Standard deviation
^aNumber of syndromes used to estimate duration (excludes syndromes treated with antibiotics, and those for children under 16)
^b Age standardised
^cCalculated by multiplying the mean QALD loss per day by the mean and median (respectively) duration estimates adjusted for right-censoring (Table 3)

ISSN: 1471-2334