Table 1. Baseline characteristics, perceived barriers and acceptance of the HPV vaccine; comparing respondents and non-respondents of the follow-up study.
| TOTAL BASELINE (n = 287) | FOLLOW-UP RESPONDENTS (n = 256) | NON-RESPONDENTS (n = 31) | ||
| BASELINE CHARACTERISTICS | ||||
| Median (IQR) | Median (IQR) | Median (IQR) | p-value | |
| Participant age at baseline | 35 (32–40) | 35 (32–40) | 35 (39–40) | 0.43 |
| Range (years) | 21 – 59 | 21 – 59 | 23 – 56 | |
| Age of daughter at baseline | 12 (11–14) | 12 (11–14) | 12 (11–13) | 0.68 |
| Range (years) | 8 – 18 | 8 – 18 | 8 – 17 | |
| Years of education of participant | 8 (7–12) | 8 (7–12) | 8 (6–11) | 0.35 |
| Range (years)* | 0 – 13+ | 0 – 13+ | 0 – 13+ | |
| Housing characteristics ** | 5 (4–5) | 5 (4–5) | 5 (4–6) | 0.04 |
| Range | 1 – 7 | 2 – 7 | 3 – 7 | |
| n (%) | n (%) | n (%) | p-value | |
| Marital status of participant | 0.85 | |||
| With partner | 217 (75.6) | 194 (75.8) | 23 (74.2) | |
| Without partner | 70 (24.4) | 62 (24.2) | 8 (25.8) | |
| Religious affiliation of participant | 0.48 | |||
| Protestant | 226 (79.3) | 204 (80.3) | 22 (71.0) | |
| Catholic | 46 (16.1) | 39 (15.3) | 7 (22.6) | |
| Muslim | 13 (4.6) | 11 (4.3) | 2 (6.4) | |
| Origin of participant *** | 0.98 | |||
| urban | 171 (60.2) | 153 (60.2) | 18 (60.0) | |
| rural - outside Kenya | 113 (39.8) | 101 (39.8) | 12 (40.0) | |
| Ever heard of cervical cancer? | 0.37 | |||
| No – don't know | 117 (40.9) | 102 (40.0) | 15 (48.4) | |
| Yes | 169 (59.1) | 153 (60.0) | 16 (51.6) | |
| BASELINE BARRIERS: if you would decide not to vaccinate, why would that be? | ||||
| Need more information? | 0.40 | |||
| (strongly) disagree | 98 (34.6) | 84 (33.3) | 14 (45.2) | |
| neutral | 17 (6.0) | 15 (5.9) | 2 (6.4) | |
| (strongly) agree | 168 (59.4) | 153 (60.7) | 15 (48.4) | |
| Doubt the vaccine works? | 0.36 | |||
| (strongly) disagree | 197 (70.1) | 174 (69.6) | 23 (74.2) | |
| neutral | 24 (8.5) | 20 (8.0) | 4 (12.9) | |
| (strongly) agree | 60 (21.3) | 56 (22.4) | 4 (12.9) | |
| Fear of side effects? | 0.26 | |||
| (strongly) disagree | 149 (52.5) | 129 (51.0) | 20 (64.5) | |
| neutral | 27 (9.5) | 26 (10.3 | 1 (3.2) | |
| (strongly) agree | 108 (38.0) | 98 (38.7) | 10 (32.3) | |
| Fear of interference with fertility? | 0.43 | |||
| (strongly) disagree | 171 (60.4) | 149 (59.1) | 22 (71.0) | |
| neutral | 45 (15.9) | 41 (16.3) | 4 (12.9) | |
| (strongly) agree | 67 (23.7) | 62 (24.6) | 5 (16.1) | |
| Afraid of unsafe administration? | 0.07 | |||
| (strongly) disagree | 203 (71.7) | 177 (70.2) | 26 (83.9) | |
| neutral | 17 (6.0) | 14 (5.6) | (9.7) | |
| (strongly) agree | 63 (22.3) | 61 (24.2) | 2 (6.4) | |
| It might encourage unsafe sex | 0.94 | |||
| (strongly) disagree | 238 (84.7) | 212 (84.8) | 26 (83.9) | |
| neutral | 23 (8.2) | 20 (8.0) | 3 (9.7) | |
| (strongly) agree | 20 (7.1) | 18 (7.2) | 2 (6.4) | |
| Daughter is too young for vaccine | 0.91 | |||
| against an STI? | ||||
| (strongly) disagree | 250 (88.3) | 222 (88.1) | 28 (90.3) | |
| neutral | 9 (3.2) | 8 (3.2) | 1 (3.2) | |
| (strongly) agree | 24 (8.5) | 22 (8.7) | 2 (6.4) | |
| Partner won't approve? | 0.70 | |||
| (strongly) disagree **** | 221 (78.4) | 196 (78.1) | 25 (80.6) | |
| neutral | 30 (10.6) | 28 (11.2) | 2 (6.4) | |
| (strongly) agree | 31 (11.0) | 27 (10.8) | 4 (12.9) | |
| Vaccination takes a lot of time | 0.75 | |||
| (strongly) disagree | 275 (96.8) | 245 (96.8) | 30 (96.8) | |
| neutral | 6 (2.1) | 5 (2.0) | 1 (3.2) | |
| (strongly) agree | 3 (1.1) | 3 (1.2) | 0 (0.00) | |
| Inconvenience of 3 doses needed | 0.08 | |||
| (strongly) disagree | 265 (96.0) | 236 (96.3) | 29 (93.5) | |
| neutral | 6 (2.2) | 6 (2.4) | 0 (0.0) | |
| (strongly) agree | 5 (1.8) | 3 (1.2) | 2 (6.4) | |
| BASELINE ACCEPTANCE | ||||
| Would you vaccinate your daughter | 0.69 | |||
| against cervical cancer? | ||||
| very unlikely | 6 (2.1) | 6 (2.3) | 0 (0.0) | |
| unlikely | 3 (1.0) | 3 (1.2) | 0 (0.0) | |
| neutral | 25 (8.7) | 21 (8.2) | 4 (12.9) | |
| likely | 80 (27.9) | 73 (28.5) | 7 (22.6) | |
| very likely | 173 (60.3) | 153 (59.8) | 20 (64.5) | |
IQR = interquartile range.
*13+: those who studied in higher education i.e. college (middle level) and/or university.
**housing: continuous variable constructed by scoring aspects of the living place: material of the roof, walls and floors, and toilet and water facilities.
*** women were asked where they had lived for most of the time up to 12 years of age.
**** includes participants without a relationship.