Volume 10, Number 1—January 2004
Research
Respiratory and Urinary Tract Infections, Arthritis, and Asthma Associated with HTLV-I and HTLV-II Infection
Table 2
Diagnosis | HTLV seronegative (N = 799) | HTLV-I (N = 152) | HTLV-II (N = 387) | ||||
---|---|---|---|---|---|---|---|
Cases (%b) | Cases (%b) | IRc | Adj. IR (95% CI)d | Cases (%b) | IRc | Adj. IR (95% CI)d | |
Pneumonia | 25 (3) | 5 (4) | 0.89 | 0.79 (0.27 to 2.29) | 19 (5) | 1.70 | 1.82 (0.98 to 3.38) |
Acute bronchitis | 103 (14) | 21 (15) | 1.12 | 1.10 (0.68 to 1.79) | 81 (23) | 1.83 | 1.68 (1.24 to 2.29) |
Bladder or kidney infection | 105 (14) | 31 (23) | 1.74 | 1.82 (1.19 to 2.77) | 73 (21) | 1.68 | 1.55 (1.14 to 2.11) |
Arthritis | 32 (5) | 16 (16) | 3.19 | 2.84 (1.51 to 5.33) | 32 (12) | 2.51 | 2.66 (1.58 to 4.45) |
Hypertension | 40 (7) | 7 (7) | 1.06 | 0.99 (0.44 to 2.22) | 20 (7) | 1.08 | 1.09 (0.63 to 1.89) |
Asthma | 15 (2) | 2 (2) | — | — | 20 (6) | 3.38 | 3.28 (1.57 to 6.84) |
Cancer | 21 (3) | 3 (2) | 0.81 | 0.72 (0.21 to 2.43) | 8 (2) | 0.87 | 1.10 (0.44 to 2.32) |
aOnly the first diagnosis of each condition is considered for each participant. IR, incidence ratio derived from survival analysis; CI, confidence interval.
bDenominator for percentage calculation varied according to the number of participants included in each disease-specific analysis.
cUnadjusted incidence ratio derived from survival analysis.
dAfter a backward selection process, including all potential confounding variables, the final survival analysis model contained these variables age, gender, race/ethnicity, and (for pneumonia, bronchitis, and asthma) smoking history (see Methods for details of the statistical analysis).
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