Characteristics | No infiltrate and no bacteraemia patients | Infiltrate without bacteraemia patients | Bacteraemia patients | ||||
---|---|---|---|---|---|---|---|
 | n (%) a | PR (95% CI) | n (%) a | PR (95% CI) | n (%) a | PR (95% CI) | |
All patients | 193 (100) | Â | 250 (100) | Â | 262 (100) | Â | |
Age (years) | |||||||
 | Median | 68 (59â76) |  | 69 (57â79) |  | 68 (57â80) |  |
 | 15-49 | 22 (11) | 1.0 (ref.) | 38 (15) | 1.3 (0.8-2.2) | 47 (18) | 1.6 (1.0-2.5) |
 | 50-74 | 116 (60) | 1.0 (ref.) | 129 (52) | 0.9 (0.7-1.0) | 128 (49) | 0.8 (0.7-1.0) |
 | âĽ75 | 55 (29) | 1.0 (ref.) | 83 (33) | 1.2 (0.9-1.5) | 87 (33) | 1.2 (0.9-1.5) |
Sex | Â | Â | Â | Â | Â | Â | Â |
 | Women | 83 (43) | 1.0 (ref.) | 90 (36) | 0.8 (0.7-1.1) | 123 (47) | 1.1 (0.9-1.3) |
 | Men | 110 (57) | 1.0 (ref.) | 160 (64) | 1.1 (1.0-1.3) | 139 (53) | 0.9 (0.8-1.1) |
Charlson comorbidity Index | |||||||
 | Index low (0) | 36 (19) | 1.0 (ref.) | 70 (28) | 1.5 (1.1-2.1) | 101 (39) | 2.1 (1.5-2.9) |
 | Index medium (1â2) | 96 (50) | 1.0 (ref.) | 92 (37) | 0.7 (0.6-0.9) | 81 (31) | 0.6 (0.5-0.8) |
 | Index high (âĽ3) | 61 (32) | 1.0 (ref.) | 88 (35) | 1.1 (0.9-1.5) | 80 (31) | 1.0 (0.7-1.3) |
Chronic pulmonary disease b | 112 (58) | 1.0 (ref.) | 114 (46) | 0.8 (0.7-0.9) | 58 (22) | 0.4 (0.3-0.5) | |
Chronic heart disease c | 26 (13) | 1.0 (ref.) | 35 (14) | 1.0 (0.6-1.7) | 35 (13) | 1.0 (0.6-1.6) | |
BMI (median) | 23.5 (20.0-27.4) | Â | 23.3 (21.0-26.3) | Â | 23.6 (21.9-26.7) | Â | |
Smoking | 112 (58) | 1.0 (ref.) | 114 (46) | 0.8 (0.7-0.9) | 58 (22) | 0.4 (0.3-0.5) | |
 | Yes, currently | 106 (58) | 1.0 (ref.) | 122 (53) | 0.9 (0.8-1.1) | 99 (43) | 0.7 (0.6-0.9) |
 | No, former | 57 (31) | 1.0 (ref.) | 69 (30) | 1.2 (0.6-2.4) | 66 (29) | 3.1 (1.7-5.7) |
 | No, never | 12 (7) | 1.0 (ref.) | 18 (8) | 1.0 (0.7-1.3) | 47 (20) | 0.9 (0.7-1.2) |
 | No, unknown | 7 (4) | 1.0 (ref.) | 21 (9) | 2.4 (1.0-5.5) | 18 (8) | 2.0 (0.8-4.8) |
Alcohol | |||||||
 | >7/14 per week d | 31 (18) | 1.0 (ref.) | 60 (27) | 1.5 (1.0-1.7) | 48 (23) | 1.2 (0.8-1.9) |
 | â¤7/14 per week d | 68 (40) | 1.0 (ref.) | 89 (40) | 1.0 (0.8-1.3) | 69 (32) | 0.8 (0.6-1.1) |
 | Never | 71 (42) | 1.0 (ref.) | 76 (34) | 0.8 (0.6-1.0) | 96 (45) | 1.1 (0.9-1.4) |
Employment | |||||||
 | Employed | 18 (12) | 1.0 (ref.) | 24 (13) | 1.0 (0.6-1.8) | 47 (24) | 1.9 (1.2-3.2) |
 | Unemployed | 7 (5) | 1.0 (ref.) | 10 (5) | 1.1 (0.4-2.9) | 5 (3) | 0.5 (0.2-1.6) |
 | Pension | 117 (81) | 1.0 (ref.) | 142 (76) | 0.9 (0.8-1.1) | 140 (70) | 0.9 (0.8-1.0) |
 | Other e | 3 (2) | 1.0 (ref.) | 10 (5) | 2.6 (0.7-9.3) | 6 (3) | 1.5 (0.4-5.8) |
Housing | |||||||
 | Own house/apartment | 166 (94) | 1.0 (ref.) | 207 (89) | 1.0 (0.9-1.0) | 213 (93) | 1.0 (0.9-1.0) |
 | Institution | 9 (5) | 1.0 (ref.) | 20 (9) | 1.7 (0.8-3.6) | 14 (6) | 1.2 (0.5-2.7) |
 | Homeless | 2 (1) | 1.0 (ref.) | 5 (2) | 1.9 (0.4-9.7) | 1 (0) | 0.4 (0.0-4.2) |
Travel history f | 7 (4) | 1.0 (ref.) | 7 (3) | 0.8 (0.3-2.2) | 7 (3) | 0.7 (0.3-2.1) | |
Vaccination | |||||||
 | Influenza vaccine | 2 (1) | 1.0 (ref.) | 1 (0) | NA | 0 (0) | NA |
 | Pneumococcal vaccine | 0 (0) | 1.0 (ref.) | 1 (0) | NA | 0 (0) | NA |