Table 2.

Binary and ordinal logistic regressions with ethnicity and IMD as explanatory variables and hospital admission as main outcome (n = 1412)

Variable	Unadjusted model (explanatory variables only)		Model 1a		Model 2b		Model 3c
	Odds ratios (95% CI)	P-value	Odds ratios (95% CI)	P-value	Odds ratios (95% CI)	P-value	Odds ratios (95% CI)	P-value
Outcome: hospital admission (n = 1412)
Ethnicity
White (British/Other)	Ref				Ref		Ref
Bangladeshi	1.94 (1.04–3.64)	0.038*			1.97 (1.04–3.76)	0.039*	1.59 (0.78–3.26)	0.201
Pakistani	3.43 (2.10–5.62)	<0.001***			3.50 (2.09–5.88)	<0.001***	3.00 (1.66–5.43)	<0.001***
Indian	2.22 (1.41–3.51)	0.001**			2.43 (1.52–3.88)	<0.001***	2.05 (1.18–3.54)	0.011*
Black (African/Caribbean)	1.74 (0.76–3.97)	0.189			2.20 (0.94–5.16)	0.070	1.43 (0.57–3.62)	0.450
Other/Other Asian	3.92 (1.78–8.61)	0.001**			3.99 (1.79–8.89)	0.001**	3.51 (1.52–8.14)	0.003**
IMD quintile	Ref
1 (most deprived)					Ref		Ref
2	0.69 (0.46–1.02)	0.064			0.66 (0.44–0.98)	0.041*	0.59 (0.39–0.90)	0.015*
3	0.82 (0.51–1.32)	0.418			0.82 (0.51–1.32)	0.404	0.65 (0.40–1.08)	0.095
4	1.20 (0.68–2.14)	0.528			1.19 (0.67–2.14)	0.552	1.07 (0.58–1.99)	0.825
5 (least deprived)	0.79 (0.47–1.35)	0.394			0.76 (0.45–1.31)	0.327	0.69 (0.39–1.23)	0.206
Sex
Male			Ref		Ref		Ref
Female			0.92 (0.68–1.24)	0.575	0.90 (0.66–1.21)	0.483	0.95 (0.69–1.31)	0.757
Age
25–44			Ref		Ref		Ref
0–4			1.00 (0.55–1.81)	0.993	0.77 (0.42–1.42)	0.399	0.72 (0.37–1.39)	0.326
5–9			0.94 (0.57–1.56)	0.805	0.78 (0.47–1.32)	0.359	0.88 (0.50–1.53)	0.647
10–14			1.07 (0.57–2.02)	0.826	0.94 (0.49–1.79)	0.842	0.95 (0.48–1.88)	0.882
15–24			1.49 (0.94–2.38)	0.092	1.54 (0.96–2.49)	0.074	1.70 (1.03–2.83)	0.040*
45–64			0.50 (0.33–0.76)	0.001**	0.51 (0.33–0.77)	0.002**	0.50 (0.32–0.77)	0.002**
65+			0.52 (0.24–1.14)	0.100	0.63 (0.28–1.42)	0.268	0.61 (0.27–1.40)	0.242
Residence
Urban							Ref
Rural							1.52 (0.66–3.47)	0.322
Travel abroad							Ref
No							0.68 (0.31–1.51)	0.347
Yes
Antibiotic administration
No							Ref
Yes							16.15 (7.98–32.68)	<0.001***
Organism
Salmonella Typhi							Ref
Salmonella Paratyphi A							0.60 (0.42–0.83)	0.003**
Salmonella Paratyphi B							0.48 (0.22–1.07)	0.074

^aOutcome, sex and age group included in the model.

^bOutcome, explanatory variables, sex and age included in the model.

^cOutcome, explanatory variables, sex, age, residence, travel abroad, antibiotic administration and organism included in the model.

*P < 0.05, **P < 0.01, ***P < 0.001.