Table 2.

Multivariable analysis of odds of AHA

Characteristic	Adjusted odds ratio (95% CI)	P-value
Sex
Male	1
Female	0.73 (0.68 to 0.77)	<0.001
Age (categorical), years
16–34	1
35–54	1.61 (1.47 to 1.75)	<0.001
55–74	2.45 (2.22 to 2.70)	<0.001
≥75	3.47 (3.09 to 3.89)	<0.001
IMD quintile
1 (least deprived)	1
2	1.48 (0.86 to 2.58)	0.16
3	1.93 (1.14 to 3.26)	0.015
4	1.93 (1.15 to 3.22)	0.012
5 (most deprived)	2.02 (1.21 to 3.37)	0.007
Ethnicity
White	1
Black	0.75 (0.68 to 0.82)	<0.001
Asian	0.83 (0.78 to 0.89)	<0.001
Mixed & other	0.81 (0.68 to 0.97)	0.025
Unknown	0.84 (0.69 to 1.02)	0.079
Treatment within +/−7 days
Treated	1
Not treated	0.84 (0.79 to 0.89)	<0.001
Risk factors for complicated UTI
Absence of risk factor	1
Structural abnormalities	1.29 (1.19 to 1.41)	<0.001
CKD	1.35 (1.24 to 1.47)	<0.001
Urinary catheter	1.64 (1.40 to 1.91)	<0.001
Antibiotics last 6 months, courses
0	1
1–2	1.26 (1.19 to 1.34)	<0.001
≥3	1.52 (1.40 to 1.66)	<0.001
Other risk factors
Absence of risk factor	1
Recurrent UTI	1.03 (0.96 to 1.10)	0.404
UI	1.24 (1.15 to 1.33)	<0.001
FI	1.27 (1.09 to 1.47)	0.002
Obesity	1.19 (1.02 to 1.39)	0.025
Heart failure	1.37 (1.21 to 1.56)	<0.001
Hypertension	1.13 (1.06 to 1.21)	<0.001
Cancer	1.39 (1.26 to 1.54)	<0.001
DM	1.26 (1.17 to 1.34)	<0.001
Season
Spring	1
Summer	1.04 (0.97 to 1.12)	0.239
Autumn	1.05 (0.98 to 1.13)	0.144
Winter	1.03 (0.96 to 1.11)	0.421

AHA = all-cause hospital admission. CKD = chronic kidney disease. DM = diabetes mellitus. FI = faecal incontinence. IMD = Index of Multiple Deprivation. UI = urinary incontinence. UTI = urinary tract infection.