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Table 1 Characteristics of participants in included studies for bacterial pneumonia and Pneumocystis jiroveci pneumonia.

From: Systematic review and meta-analysis: influence of smoking cessation on incidence of pneumonia in HIV

Reference Number. of participants Men (%) Mean/median age(SD) in years Smokers (%) Non-smokers (%) Mean/median CD4+ count Use of HAART
Bacterial pneumonia
[12] 40 75 Median 30 to 40 NR NR NR Pre HAART era
[21] 867 99 Mean 50 (10) 63% 22% former smokers,15% never smokers NR Post-HAART era
[13] 509 100 Median 30 80% 20% non-smokers 177 cells/μL Post-HAART era
[23] 5472 73 Median 43 41% 25% former, 34% never smokers >350 cells/μL Post-HAART era
[14] 1130 NR NR NR NR NR Pre-HAART era
[15] 885 0 (all female) Mean 36 76% 24% NR Pre and Post HAART era
[16] 1203 77 Mean 36 66% unknown orcurrent smokers 34% currently not smoking 279 cells/μL Post-HAART era
[17] 300 56 Mean 37 (7) 92% 8% non-smokers 327 cells/μL Post-HAART era
[18] 285 NR Mean 34 (8) 55% 45% non-smokers 182 cells/μL Pre-HAART era
Bacterial pneumonia and Pneumocystis jiroveci pneumonia
19] 3221 83 Mean 37 57% 19% former smokers,24%, never smoker 327 cells/μL Pre-HAART era
[20] 232 100 Median 36 to 38 46% 54% NR Pre-HAART era
[25] 521 58 Mean 42 (9) 63% 12% former smokers,25% never smokers 172 cells/μL Post-HAART era
Pneumocystis jiroveci pneumonia only
[22] 2499 100 NR 39% 61% >200 cells/μL Pre-HAART era
[24] 54 59 Mean 40 NR NR 257 cells/μL Post-HAART era
  1. HAART: highly active antiretroviral treatments; NA: not applicable; NR: not reported.