Table 3:
Subgroup analysis of intervention effect on uptake of cervical cancer screening in intention-to-treat analysis
| Intervention group (n=438) | Control group (n=227) | Risk ratio, (95% CI) | |
|---|---|---|---|
| Age group, years | |||
| 25–34 | 83/133 (62%) | 19/76 (25%) | 2·50 (1·65–3·77) |
| 35–44 | 88/117 (75%) | 20/54 (37%) | 2·03 (1·41–2·92) |
| 45 or older | 146/188 (78%) | 46/97 (47%) | 1·64 (1·31–2·05) |
| Time since last cervical cancer screening, years | |||
| ≤5 | 153/199 (77%) | 43/114 (38%) | 2·04 (1·59–2·61) |
| >5 | 130/188 (69%) | 32/81 (40%) | 1·75 (1·32–2·33) |
| Not sure, but >4 years ago | 22/32 (69%) | 8/22 (36%) | 1·89 (1·04–3·45) |
| Never screened | 12/19 (63%) | 2/10 (20%) | 3·16 (0·87–11·43) |
| Race and ethnicity | |||
| Black non-Latina or non-Hispanic | 143/200 (72%) | 41/111 (37%) | 1·94 (1·50–2·51) |
| White non-Latina or non-Hispanic | 126/175 (72%) | 28/82 (34%) | 2·11 (1·54–2·89) |
| Latina or Hispanic | 29/38 (76%) | 8/16 (50%) | 1·53 (0·91–2·57) |
| Other | 19/25 (76%) | 8/17 (47%) | 1·62 (0·93–2·80) |
| Medicaid or Medicaid coverage | |||
| Medicare only, Medicaid only, or Medicaid and Medicare* | 63/94 (67%) | 13/51 (26%) | 2·63 (1·61–4·29) |
| Uninsured | 254/344 (74%) | 72/174 (41%) | 1·79 (1·48–2·15) |
| Education | |||
| High school, GED, or less | 135/188 (72%) | 31/93 (33%) | 2·15 (1·59–2·91) |
| Some college† or more | 182/250 (73%) | 54/134 (40%) | 1·78 (1·48–2·15) |
| Annual household income, US$ | |||
| $0–9999 | 92/135 (68%) | 34/82 (42%) | 1·64 (1·24–2·18) |
| $10 000–24 000 | 125/166 (76%) | 33/71 (47%) | 1·62 (1·24–2·11) |
| $25 000 or higher | 85/115 (74%) | 15/63 (24%) | 3·10 (1·97–4·89) |
Data are n/N (%) unless otherwise stated, where n is the number of participants screened and N is the total number of participants in the subgroup. Data are shown only for participants with available data, as indicated in table 1. Screening uptake is defined as attending cervical cancer screening at any clinic or testing negative for HPV on self-collected samples. GED=General Education Development or Diploma. HPV=human papilloma virus. Where values do not add to the total, there were missing data in subgroup variables.
Ten participants were enrolled in both Medicare and Medicaid, four participants were enrolled in Medicare only, and 131 participants were enrolled in Medicaid only.
Some college indicates the participant took college-level courses but did not earn a degree.