Table 3.

Return rates of initial and repeat FOBT by literacy level

Limited literacy
Study arm
All patients (n = 235)Enhanced care (n = 68)Education (n = 51)Nurse (n = 116)P-value
N (%)N (%)N (%)N (%)
Return of BOTH initial + repeat FOBT108 (46)23 (33.8)13 (25.5)72 (62.1)0.0013
Return of initial FOBT; repeat FOBT not returned year 2127 (54)45 (66.2)38 (74.5)44 (37.9)
Screening ratio1.000.831.72
95% CI(0.39–1.76)(0.77–3.86)
P-value0.630.19
Screening ratio1.002.07
95% CI(1.40–3.05)
P-value0.0003
Adequate literacy
Study arm
All patients (n = 226)Enhanced care (n = 33)Education (n = 106)Nurse (n = 87)P-value
N (%)N (%)N (%)N (%)
Return of BOTH initial + repeat FOBT102 (45)15 (45.5)39 (36.8)48 (55.2)0.0003
Return of initial FOBT; repeat FOBT not returned year 2124 (55)18 (54.5)67 (63.2)39 (44.8)
Screening ratio1.000.891.24
95% CI(0.63–1.26)(0.90–1.70)
P-value0.510.19
Screening ratio1.001.39
95% CI(1.18–1.64)
P-value<0.0001

NOTE: Screening ratios and P-values control for age (in years), race (African-American vs. Caucasian and Hispanic), gender, and literacy (2 categories).