Clinical Features of cases by EBV status
. | All cases, no. (%) . | EBV negative, no. (%) . | EBV positive, no (%) . | OR (95% CI) . |
|---|---|---|---|---|
| All ages, adjusted for sex and age group | ||||
| Stage* | ||||
| I | 78 (17.8) | 34 (11.6) | 44 (30.3) | 2.61 (1.40-4.92) |
| II | 182 (41.6) | 144 (49.3) | 38 (26.2) | 0.58 (0.33-1.01) |
| III | 102 (23.3) | 68 (23.3) | 34 (23.4) | 1.00 |
| IV | 75 (17.2) | 46 (15.6) | 29 (20.0) | 1.16 (0.61-2.22) |
| B symptoms | ||||
| No | 243 (56.0) | 166 (56.8) | 77 (54.2) | 1.00 |
| Yes | 191 (44.0) | 126 (43.2) | 65 (45.8) | 0.67 (0.59-1.40) |
| Disease stage | ||||
| Early | 180 (41.2) | 125 (42.8) | 55 (37.9) | 1.00 |
| Advanced | 257 (58.8) | 167 (57.1) | 90 (62.1) | 1.08 (0.7-1.65) |
| Young adults, 15 to 34 years, adjusted for sex | ||||
| Stage* | ||||
| I | 36 (15.9) | 12 (6.9) | 24 (45.3) | 7.70 (2.90-20.44) |
| II | 99 (43.6) | 88 (50.6) | 11 (20.8) | 0.54 (0.21-1.36) |
| III | 55 (24.2) | 44 (25.3) | 11 (20.8) | 1.00 |
| IV | 37 (16.3) | 30 (17.2) | 7 (13.2) | 0.80 (0.28-2.35) |
| B symptoms | ||||
| No | 136 (59.9) | 100 (57.5) | 36 (67.9) | 1.00 |
| Yes | 91 (40.1) | 74 (42.5) | 17 (32.1) | 0.56 (0.29-1.10) |
| Disease stage | ||||
| Early | 98 (43.2) | 70 (40.2) | 28 (52.8) | 1.00 |
| Advanced | 129 (56.8) | 104 (59.8) | 25 (47.2) | 0.53 (0.28-1.00) |
| Older adults, 50 y or older, adjusted for sex | ||||
| Stage† | ||||
| I | 26 (20.5) | 14 (22.2) | 12 (18.9) | 0.88 (0.31-2.49) |
| II | 44 (34.6) | 26 (41.3) | 18 (28.1) | 0.71 (0.28-1.77) |
| III | 33 (26.0) | 17 (27.0) | 16 (25.0) | 1.00 |
| IV | 24 (18.9) | 6 (9.5) | 18 (28.1) | 3.38 (1.06-10.82) |
| B symptoms | ||||
| No | 64 (51.2) | 36 (57.1) | 28 (45.2) | 1.00 |
| Yes | 61 (48.8) | 27 (42.9) | 34 (55.8) | 1.68 (0.81-3.48) |
| Disease stage | ||||
| Early | 48 (37.8) | 29 (46.0) | 19 (29.7) | 1.00 |
| Advanced | 79 (62.2) | 34 (54.0) | 45 (70.3) | 2.04 (0.98-4.26) |
. | All cases, no. (%) . | EBV negative, no. (%) . | EBV positive, no (%) . | OR (95% CI) . |
|---|---|---|---|---|
| All ages, adjusted for sex and age group | ||||
| Stage* | ||||
| I | 78 (17.8) | 34 (11.6) | 44 (30.3) | 2.61 (1.40-4.92) |
| II | 182 (41.6) | 144 (49.3) | 38 (26.2) | 0.58 (0.33-1.01) |
| III | 102 (23.3) | 68 (23.3) | 34 (23.4) | 1.00 |
| IV | 75 (17.2) | 46 (15.6) | 29 (20.0) | 1.16 (0.61-2.22) |
| B symptoms | ||||
| No | 243 (56.0) | 166 (56.8) | 77 (54.2) | 1.00 |
| Yes | 191 (44.0) | 126 (43.2) | 65 (45.8) | 0.67 (0.59-1.40) |
| Disease stage | ||||
| Early | 180 (41.2) | 125 (42.8) | 55 (37.9) | 1.00 |
| Advanced | 257 (58.8) | 167 (57.1) | 90 (62.1) | 1.08 (0.7-1.65) |
| Young adults, 15 to 34 years, adjusted for sex | ||||
| Stage* | ||||
| I | 36 (15.9) | 12 (6.9) | 24 (45.3) | 7.70 (2.90-20.44) |
| II | 99 (43.6) | 88 (50.6) | 11 (20.8) | 0.54 (0.21-1.36) |
| III | 55 (24.2) | 44 (25.3) | 11 (20.8) | 1.00 |
| IV | 37 (16.3) | 30 (17.2) | 7 (13.2) | 0.80 (0.28-2.35) |
| B symptoms | ||||
| No | 136 (59.9) | 100 (57.5) | 36 (67.9) | 1.00 |
| Yes | 91 (40.1) | 74 (42.5) | 17 (32.1) | 0.56 (0.29-1.10) |
| Disease stage | ||||
| Early | 98 (43.2) | 70 (40.2) | 28 (52.8) | 1.00 |
| Advanced | 129 (56.8) | 104 (59.8) | 25 (47.2) | 0.53 (0.28-1.00) |
| Older adults, 50 y or older, adjusted for sex | ||||
| Stage† | ||||
| I | 26 (20.5) | 14 (22.2) | 12 (18.9) | 0.88 (0.31-2.49) |
| II | 44 (34.6) | 26 (41.3) | 18 (28.1) | 0.71 (0.28-1.77) |
| III | 33 (26.0) | 17 (27.0) | 16 (25.0) | 1.00 |
| IV | 24 (18.9) | 6 (9.5) | 18 (28.1) | 3.38 (1.06-10.82) |
| B symptoms | ||||
| No | 64 (51.2) | 36 (57.1) | 28 (45.2) | 1.00 |
| Yes | 61 (48.8) | 27 (42.9) | 34 (55.8) | 1.68 (0.81-3.48) |
| Disease stage | ||||
| Early | 48 (37.8) | 29 (46.0) | 19 (29.7) | 1.00 |
| Advanced | 79 (62.2) | 34 (54.0) | 45 (70.3) | 2.04 (0.98-4.26) |