Table 4.
Number of Biospecimens Provided and Rates of Donation by Biospecimen Type at Baseline and Follow-up among Rural Latina Breast Cancer Survivors, N=103, California, 2016–2018.
| Baseline | 6-month Follow-up | |||||
|---|---|---|---|---|---|---|
| Total | El Centro, CA | Visalia, CA | Total | El Centro, CA | Visalia, CA | |
| Number of biospecimens provided | N (%) | n (%) | n (%) | N (%) | n (%) | n (%) |
| 0 of the 3 types of biospecimens | 0 (0) | 0 (0) | 0 (0) | 15 (15) | 7 (14) | 8 (15) |
| Only 1 of 3 types of biospecimens | 10 (10) | 9(18) | 1 (2) | 9 (9) | 8 (16) | 1 (2) |
| Only 2 of 3 types of biospecimens | 42 (41) | 32 (64) | 10 (19) | 26 (25) | 22 (44) | 4 (8) |
| All 3 of 3 types of biospecimens | 51 (50) | 9 (18) | 42 (79) | 53 (51) | 13 (26) | 40 (75) |
| Total | 103 (100) | 50 (100) | 53 (100) | 103 (100) | 50 (100) | 53 (100) |
| Rate of donation by type of biospecimen | N (%a) | n (%a) | n (%a) | N (%a) | n (%a) | n (%a) |
| Saliva for cortisol awakening response (CAR)b | 92 (89) | 41 (82) | 51 (96) | 78 (76) | 34 (68) | 44 (83) |
| Hair for hair cortisol concentration (HCC) | 54 (52) | 11 (22) | 43 (81) | 57 (55) | 15 (30) | 42 (79) |
| Saliva for telomere length (TL) via DNA from cheek cells | 101 (98) | 48 (96) | 53 (100) | 85 (83) | 42 (84) | 43 (81) |
a
Percent of total sample (N=103) or site subsample (n=50 for El Centro and 53 for Visalia) at baseline.
b
Requires 3 samples per day for 3 days (9 samples total).