Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

Volume 23, Number 7—July 2017

CME ACTIVITY - Research

Risk Factors for Legionella longbeachae Legionnaires’ Disease, New Zealand

Emma Kenagy1, Patricia C. Priest1Comments to Author , Claire M. Cameron, Debbie Smith, Pippa Scott, Vicki Cho, Peter Mitchell, and David R. Murdoch
Author affiliations: University of Otago, Christchurch, New Zealand (E. Kenagy, P. Scott, V. Cho, D.R. Murdoch); Canterbury District Health Board, Christchurch (E. Kenagy, D. Smith, P. Mitchell); University of Otago, Dunedin, New Zealand (P. Priest, C.M. Cameron)

Main Article

Table 2

Univariate analyses of the associations between health conditions or smoking and Legionella longbeachae Legionnaires’ disease, New Zealand, October 1–March 31, 2013–2014 and 2014–2015*

Health conditions Case-patients, no. (%) Controls, no. (%) OR (95% CI)
Preexisting health conditions
Cardiac disease 8 (26) 35 (20) 1.2 (0.47–3.0)
Respiratory disease 10 (32) 35 (20) 2.1 (0.87–4.9)
Asthma 8 (26) 28 (16) 1.9 (0.76–4.9)
COPD 5 (16) 9 (5) 4.2 (1.2–14.7)
Diabetes 5 (16) 12 (7) 2.8 (0.88–9.0)
Immunosuppression
6 (19)
16 (9)
2.7 (0.91–7.9)
Smoking
Current smoker 4 (13) 9 (5) 2.4 (0.66–8.5)
Ever smoked
19 (61)
63 (37)
2.6 (1.2–5.7)
Smoking period†
Never smoked 12 (39) 109 (65) 1.0
Smoked <20 y 5 (16) 26 (16) 1.6 (0.5–5.1)
Smoked 20 y to <40 y 4 (13) 17 (10) 2.3 (0.6–8.0)
Smoked >40 y 10 (32) 15 (9) 5.6 (2.0–16.0)

*COPD, chronic obstructive pulmonary disease; OR, odds ratio.
†Length of time smoking could not be determined for 5 control respondents. Percentages are given for those in which length of time smoking was known.

Main Article

1These authors contributed equally to this article.

TOP