Table 1. Adjusted overall estimated prevalence of pulmonary tuberculosis per 100 000 population aged ≥ 15 years, Gambia, 2012.
| Group | Prevalence per 100 000 population (95% CI) |
|||||
|---|---|---|---|---|---|---|
| Smear-positive cases |
Bacteriologically confirmed cases |
|||||
| Model 1a | Model 2b | Model 3c | Model 1a | Model 2b | Model 3c | |
| Overall point estimate | 80 (44–116) | 92 (55–128) | 90 (53–127) | 181 (129–232) | 199 (147–250) | 212 (152–272) |
| Residence | ||||||
| Rural | 79 (27–132) | 90 (44–142) | 86 (32–140) | 154 (90–219) | 165 (102–228) | 109 (54–164) |
| Urban | 81 (35–127) | 93 (44–142) | 96 (43–148) | 219 (138–301) | 239 (152–327) | 266 (164–368) |
| Sex | ||||||
| Male | 139 (82–195) | 151 (88–213) | 148 (88–208) | 295 (208–381) | 309 (221–396) | 333 (233–433) |
| Female | 40 (0–81) | 40 (1–80) | 41(0–83) | 103 (50–155) | 104 (53–156) | 109 (54–164) |
| Age group (years) | ||||||
| 15–34 | 45 (19–71) | 53 (23–82) | 56 (24–88) | 109 (63–155) | 117 (70–163) | 133 (76–190) |
| 35–54 | 102 (57–190) | 141 (59–224) | 144 (65–223) | 285 (178–392) | 323 (199–447) | 355 (219–490) |
| ≥ 55 | 146 (55–387) | 187 (0–385) | 159 (0–367) | 331 (92–570) | 364 (140–588) | 329 (99–558) |
CI: confidence interval.
a Model 1: logistic regression model with robust standard errors and no missing value imputation.
b Model 2: logistic regression model with robust standard errors and missing value imputation of non-participants as well as participants.
c Model 3: logistic regression model with robust standard errors, with missing value imputation of participants with missing smear and/or culture results, and inverse probability weighting applied to all survey participants to correct for differentials in participation by age, sex and recidence.4,8