Table 2. Comparison of patients' characteristics between two vaccine groups (n = 312).
| Patients' characteristics | Vaccine groups | ||
| 23vPPV (n = 153) | PCV7-23vPPV (n = 159) | p-value | |
| Age | |||
| Mean | 69.97 | 70.38 | p = 0.692 |
| SD | 8.94 | 9.33 | |
| Median | 66.63 | 66.46 | |
| Age group (Years) | |||
| 60–64 | 55 (35.95%) | 53 (33.33%) | p = 0.793 |
| 65–74 | 55 (35.95%) | 63 (39.62%) | |
| 75–100 | 43 (28.10%) | 43 (27.04%) | |
| Sex | |||
| Male | 79 (51.63%) | 87 (54.72%) | p = 0.585 |
| Female | 74 (48.37%) | 72 (45.28%) | |
| Frailty Index * | |||
| Low (1–10) | 83 (54.25%) | 99 (62.26%) | p = 0.338 |
| Moderate (11–15) | 44 (28.76%) | 36 (22.64%) | |
| Severe (16–24) | 26 (16.99%) | 24 (15.09%) | |
| Death during study period | 14 (9.15%) | 7 (4.40%) | p = 0.094 |
| Mini-Mental State | |||
| Impaired (≤18) | 17 (11.11%) | 8 (5.03%) | p = 0.064 |
| Borderline (19–22) | 148(11.76%) | 13 (8.18%) | |
| Normal (≥23) | 118 (77.12%) | 138 (86.79%) | |
| Barthel index (disability scores) | |||
| Severe dependency (0–49) | 11 (7.19%) | 7 (4.40%) | p = 0.427 |
| Moderate dependency (50–90) | 68(44.44%) | 66 (41.51%) | |
| Minimal dependency (91–100) | 74 (48.37%) | 86 (54.09%) | |
*The Frailty index sums comorbid conditions.