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. 2021 Jun 25;16(6):e0253561. doi: 10.1371/journal.pone.0253561

Table 1. Characteristics of respondents and children who completed the knowledge, attitude/perception, and practice survey, Bangkok, Thailand 2018.

All children (N = 700) n (%) Vaccinated childrena (N = 61) n (%) Unvaccinated childrena (N = 639) n (%) p-value
ENROLLMENT SETTING
Study site and location 0.06
Queen Sirikit National Institute of Child Health, Bangkok 100 (14) 8 (13) 92 (14)
Chonburi Hospital, Chonburi 100 (14) 8 (13) 92 (14)
Khon Kaen Hospital, Khon Kaen 100 (14) 5 (8) 95 (15)
Nakornping Hospital, Chiang Mai 100 (14) 16 (26) 84 (13)
Pranangklao Hospital, Nonthaburi 100 (14) 4 (7) 96 (15)
Sunpasitthiprasong Hospital, Ubonratchathani 100 (14) 9 (15) 91 (14)
Surat Thani Hospital, Surat Thani 100 (14) 11 (18) 89 (14)
Department 0.93
Outpatient 629 (90) 55 (90) 574 (90)
Inpatient 71 (10) 6 (10) 65 (10)
RESPONDENTS’ CHARACTERISTICS
Relationship with the enrolled child 0.58
Parent 627 (90) 57 (93) 570 (89)
Other family member 61 (9) 3 (5) 58 (9)
Hired nanny 5 (<1) 0 (0) 5 (1)
Other 7 (1) 1 (2) 6 (1)
Age at enrollment (years) 0.46
<20 32 (5) 3 (5) 29 (5)
20–29 318 (45) 24 (39) 294 (46)
30–39 243 (35) 28 (46) 215 (34)
40–49 62 (9) 4 (7) 58 (9)
50–59 36 (5) 2 (3) 34 (95)
≥60 9 (1) 0 (0) 0 (0)
Sex 0.52
Female 560 (80) 52 (85) 508 (79)
Male 67 (10) 5 (8) 62 (10)
Highest education <0.01
At least diploma/higher vocational school 272 (39) 37 (61) 235 (38)
Lower than diploma or higher vocational school 404 (58) 24 (39) 380 (59)
No schooling 24 (3) 0 (0) 24 (4)
Knew of influenza illness 0.03
Yes 541 (77) 57 (93) 484 (76)
No 132 (19) 2 (3) 130 (20)
Not sure or refused to answer 27 (4) 2 (3) 25 (4)
Knew of influenza vaccine 0.07
Yes 469 (87) 55 (96) 414 (86)
No 49 (9) 1 (2) 48 (10)
Not sure 23 (4) 1 (2) 22 (4)
Ever had seasonal influenza vaccinationb 0.61
Yes 57 (8) 6 (10) 51 (8)
No 643 (92) 55 (90) 588 (92)
CHILDREN’S CHARACTERISTICS
Age at enrollment (months) 0.40
6 to <12 207 (30) 193 (30) 14 (23)
12 to <24 304 (43) 277 (43) 27 (44)
24 to <36 189 (27) 169 (26) 20 (33)
Sex 0.95
Female 301 (43) 26 (43) 275 (43)
Male 399 (57) 35 (57) 364 (57)
Had existing medical condition(s)b 0.27
No 586 (84) 48 (79) 538 (84)
1 condition 86 (12) 9 (15) 77 (12)
≥2 conditions 28 (4) 4 (7) 24 (4)
Health insurance coverage during the enrollment visit 0.03
Universal coverage 536 (77) 47 (77) 489 (77)
Civil service 32 (5) 7 (11) 25 (4)
Private 2 (<1) 0 (0) 2 (<1)
Out-of-pocket 130 (19) 7 (11) 123 (19)
Lived in household with smoking family member(s) 0.03
Yes 375 (54) 23 (38) 352 (55)
No 324 (46) 38 (62) 286 (45)
Not sure 1 (<1) 0 (0) 1 (<1)
Received influenza vaccination in the 2017 influenza season or earlier <0.01
No 667 (95) 48 (79) 619 (97)
1 dose 10 (1) 4 (7) 6 (1)
≥2 doses 23 (3) 9 (15) 14 (2)

aDuring the influenza season when the survey was conducted (2018).

bReported by respondents.