Table 2 Study outcomes: psoriasis and obesity

^aNaldi et al.¹⁷

1988–1997

Interview/clinical examination

BMI⩾30: n=57 (8.3%)

BMI⩾30: n=71 (12.9%)

BMI⩾30:

AOR 1.9 (1.2–2.8)

^aHerron et al.¹⁴

Not reported

Questionnaire

Mean BMI of 26.2 (s.d. 5.1)

Median BMI of 25.7

Mean BMI of 29.1 (s.d. 7.3)

Median BMI of 27.8

OR 2.39 (1.98–2.90)

^aNeimann et al.¹⁸

1987–2002

OXMIS/Read

BMI>30:

Mild Ps: n=36 117 (13.1%)

Severe Ps: n=1 093 (13.0%)

BMI>30:

Mild Ps: n=13 404 (15.8%)

Severe Ps: n=545 (20.7%)

BMI>30:

Mild Ps: OR 1.29 (1.26–1.32)

Mild Ps: AOR 1.27 (1.24–1.31)

Severe Ps: OR 1.84 (1.60–2.11)

Severe Ps: AOR 1.79 (1.55–2.05)

Cohen et al.¹¹

Not reported

Diagnosis in database

Obesity: n=1 561 (23.5%)

Obesity: n=100 (29.4%)

OR 1.4 (1.1–1.7)

AOR 1.3 (1.0–1.7)

^aKaye et al.¹⁵

1991–2005

OXMIS/Read

BMI⩾30: n=11 996 (5.5%)

BMI⩾30: n=2 760 (6.3%)

BMI⩾30:

HR 1.18 (1.14–1.23)

Cohen et al.¹²

Not reported

Diagnosis of obesity in database

Obesity: n=1 768 (3.6%)

Obesity: n=1 419 (8.4%)

OR 2.4 (2.3–2.6)

AOR 1.7 (1.5–1.9)

Xiao et al.²³

1999–2007

Medical code consistent with obesity

Obesity: n=183 (12.03)

Obesity: Mild Ps: n=227 (14.02%)

Severe Ps: n=296 (20.10%)

Mild Ps: OR 1.41 (1.08–1.85)

Mild Ps: AOR 1.42 (1.06–1.91)

Severe Ps: OR 1.51 (1.15–1.98)

Severe Ps: AOR 1.52 (1.13–2.04)

^aDriessen et al.¹³

Not reported

Manual chart review; BMI⩾30

Mean BMI of 24.9 (s.d. not reported)

Mean BMI of 28.5 (s.d. not reported)

BMI⩾30:

OR 5.49 (3.09–9.74)

Takahashi et al.²¹

2006–2008

Manual chart review

Obesity: n=36 (22.7%)

Obesity: n=60 (39.7%)

OR 2.24 (1.36–3.69)

^aSchmitt et al.¹⁹

2003–2004

ICD-10

Obesity: n=329 (10.5%)

Obesity: n=490 (15.6%)

OR 1.58 (1.36–1.83)

AOR 1.63 (1.39–1.90)

^aAugustin et al.¹⁰

2005

ICD-10

Obesity: n=136 118 (10.4%)

Obesity: n=6 055 (17.8%)

PR 1.72 (1.68–1.76)

^aAl-Mutairi et al.⁹

2003–2007

Manual chart review

BMI>30: n=195 (17%)

BMI>30:

Mild Ps: n=372 (32.5%)

Severe Ps: n=49 (41%)

BMI>30:

Mild Ps: OR 2.36 (1.93–2.87)

Severe Ps: OR 3.42 (2.30–5.10)

^aWarnecke et al.²²

2009–2010

Questionnaire/clinical assessment

BMI>30: n=33 (33%)

Mean BMI of 27.7 (s.d. 5.6)

BMI>30: n=44 (44%)

Mean BMI of 30.1 (s.d. 7.7)

AOR 1.03 (0.97–1.09)

^aZhang et al.²⁴

1997–2009

Clinical assessment

BMI⩾30: n=30 (2.6%);

Mean BMI of 22.86 (s.d. 3.37)

BMI⩾30: n=179 (4.0%);

Mean BMI of 23.29 (s.d. 3.25)

BMI⩾30: OR 1.68 (1.13–2.49)

^aShapiro et al.²⁰

1993–2006

ICD-9

Obesity: n=94 (8.7%)

Obesity: n=143 (13.3%)

OR 1.60 (1.22–2.11)

AOR 1.32 (0.99–1.76)

Langan et al.¹⁶

Not reported

Read codes (THIN database)

BMI 30–35: n=7 678 (20.5%)

BMI>35: n=4 907 (13.1%)

BMI 30–35: n=887 (23.5%)

BMI>35: n=662 (17.5%)

BMI>30: OR 1.38 (1.29–1.48)

AOR 1.25 (1.16–1.34)