Total Invited*(n = 3892) | Completed Survey (n = 1592 [40%]) | Did Not Complete Survey (n = 2300 [60%]) | Odds Ratio (95% CI) | P | Adjusted Odds Ratio (95% CI)† | P | |
---|---|---|---|---|---|---|---|
Girls | 1852 | 783 (42) | 1069 (58) | 1.0 | 1.0 | ||
Boys | 2040 | 809 (40) | 1231 (60) | 0.90 (0.79–1.02) | .097 | 0.95 (0.82–1.10) | .478 |
Age (years) | |||||||
13–14 | 1579 | 665 (42) | 914 (58) | 1.0 | 1.0 | ||
15–17 | 2313 | 927 (40) | 1386 (60) | 0.92 (0.71–1.05) | .204 | 0.93 (0.80–1.09) | .370 |
Month | |||||||
September | 1541 | 645 (42) | 896 (58) | 1.0 | 1.0 | ||
October | 1854 | 782 (42) | 1072 (58) | 1.01 (0.88–1.16) | .849 | 1.10 (0.82–1.48) | .53 |
November | 497 | 165 (33) | 332 (67) | 0.69 (0.56–0.85) | .001 | 0.082 (0.56–1.19) | .29 |
Values in “Total Invited” column presented as n, and values in “Completed Survey” and “Did Not Complete Survey” columns presented as n (%).
* Total invited not including those who were ineligible.
† Odds ratio adjusted for respective covariates, including sex, age, initial mail month, the type of survey sent, and whether or not a reminder call was attempted.