|  | Caffeine intake |  |  | |||
---|---|---|---|---|---|---|---|
 | Group 0 | Group 1 | Group 2 | Group 3 | Group 4 |  |  |
 | 0 mg | 1–149 mg | 150–299 mg | 300–449 mg | 450+ mg |  |  |
Telomere Length: | Mean + SE | Mean ± SE | Mean ± SE | Mean ± SE | Mean ± SE | F | P |
All participants (n = 5826) | 5980a + 59 | 5941a ± 49 | 5867b ± 57 | 5850b ± 72 | 5701c ± 67 | 6.1 | 0.0011 |
(sample size and %) | (862, 12%) | (2796, 44%) | (1248, 23%) | (493, 10%) | (427, 11%) | Â | Â |
Coffee drinkers (n = 3024) | — | 5862a ± 78 | 5803a,b ± 70 | 5764b ± 99 | 5606c ± 89 | 5.0 | 0.0066 |
(sample size and %) | Â | (1273, 34%) | (937, 32%) | (418, 16%) | (396, 19%) | Â | Â |
No coffee intake (n = 2802) | 6079a + 67 | 6046a + 63 | 5957b + 74 | — | — | 3.6 | 0.0398 |
(sample size and %) | (661, 24%) | (1524, 56%) | (417, 20%) | Â | Â | Â | Â |