Table 1 Characteristics of study participants
PPSV23 vaccinated group (n = 142) n (%) or Mean | PPSV23 unvaccinated group (n = 67) n (%) or Mean | Uncertain PPSV23 vaccine status group (n = 153) n (%) or Mean | ||
|---|---|---|---|---|
Age (±S.E.) | 77.6 ± 0.6 | 72.7 ± 1.0 | 74.2 ± 0.9 | |
Sex | Male | 64 (45.1) | 30 (44.8) | 71 (46.4) |
Female | 78 (54.9) | 37 (55.2) | 82 (53.6) | |
Personal medical history of pneumonia | Yes | 5 (4.1) | 6 (9.4) | 8 (10.4) |
No | 118 (95.9) | 58 (90.6) | 69 (89.6) | |
Personal medical history of respiratory disease | Yes | 15 (12.6) | 5 (7.8) | 4 (5.0) |
No | 104 (87.4) | 59 (92.2) | 76 (95) | |
Family history of pneumonia | Yes | 10 (7.9) | 8 (12.7) | 10 (11.5) |
No | 116 (92.1) | 55 (87.3) | 77 (88.5) | |
Regular health check-ups* | Yes | 112 (95.7) | 59 (98.3) | 70 (87.5) |
No | 5 (4.3) | 1 (1.7) | 10 (12.5) | |
Current smoking habits | Smoker | 14 (10.4) | 4 (6.3) | 7 (7.4) |
Non-smoker | 120 (89.6) | 60 (93.7) | 87 (92.6) | |
Subjective state of health | Good | 37 (27.4) | 23 (36.5) | 33 (35.1) |
Not good | 98 (72.6) | 40 (63.5) | 61 (64.9) | |
Subjective sense of economic conditions | Comfortable | 17 (12.9) | 2 (3.2) | 6 (6.5) |
Struggling | 115 (87.1) | 60 (96.8) | 86 (93.5) | |
Highest level of education completed | Elementary or junior high school | 67 (50.4) | 32 (51.6) | 45 (48.9) |
High school or higher | 66 (49.6) | 30 (48.4) | 47 (51.1) | |
Living alone or with others | With others | 111 (92.5) | 54 (87.1) | 68 (94.4) |
Alone | 9 (7.5) | 8 (12.9) | 4 (5.6) | |
Necessity for transportation for clinic visits | Necessary | 42 (31.1) | 14 (21.9) | 31 (33.7) |
Unnecessary | 93 (68.9) | 50 (78.1) | 61 (66.3) | |
Perceived susceptibility to common colds ** | Yes | 43 (33.6) | 10 (16.4) | 27 (31.0) |
No | 85 (66.4) | 51 (83.6) | 69 (69.0) | |
Perceived susceptibility to pneumonia** | Yes | 17 (13.2) | 3 (4.8) | 18 (20.5) |
No | 112 (86.8) | 59 (95.2) | 70 (79.5) | |
Perceived severity of pneumonia** | Yes | 42 (34.4) | 12 (18.8) | 34 (40.0) |
No | 80 (65.6) | 52 (81.2) | 51 (60.0) | |
Perceived effectiveness of PPSV23 ** | Yes | 91 (75.2) | 21 (33.3) | 47 (56.6) |
No | 30 (24.8) | 42 (66.7) | 36 (43.4) | |
Perceived barriers to PPSV23 (sense of economic burden)** | Yes | 44 (35.5) | 18 (30.5) | 27 (35.1) |
No | 80 (64.5) | 41 (69.5) | 50 (64.9) | |
physician’s recommendation | Yes | 105 (78.9) | 13 (20.3) | 38 (58.5) |
No | 28 (21.1) | 51 (79.7) | 27 (41.5) | |
Awareness of PPSV23 | Yes | 120 (92.3) | 28 (41.8) | 69 (76.7) |
No | 10 (7.7) | 39 (58.2) | 21 (23.3) | |
Awareness of public subsidies | Yes | 37 (42.0) | 8 (14.3) | 18 (34.0) |
No | 51 (48.0) | 48 (85.7) | 35 (66.0) | |
Difficulty completing the questionnaire | Completed with help. | 30 (22.7) | 13 (20.6) | 13 (14.8) |
Completed without help. | 102 (77.3) | 50 (79.4) | 75 (85.2) |