Table 2

One and 2-year survival by age group and trial status

Trial status	Age group	Number of patients	Deaths	Survival (%)	95% CI	p Value
One-year survival
Trial	15–19	203	17	91.7	86.9 to 94.7	<0.001
Non-trial	15–19	134	30	77.6	69.6 to 83.8	<0.001
Trial	20–24	36	5	86.2	69.8 to 94.0	0.969
Non-trial	20–24	130	18	86.2	79.0 to 91.1	0.969
Trial	15–24	239	22	90.8	86.4 to 93.9	0.004
Non-trial	15–24	264	48	81.9	76.6 to 86.0	0.004
2 year conditional on 1-year survival
Trial	15–19	186	10	94.7	90.3 to 97.1	0.008
Non-trial	15–19	104	16	84.7	76.2 to 90.4	0.008
Trial	20–24	31	3	90.4	73.0 to 96.9	0.236
Non-trial	20–24	112	22	80.4	71.8 to 86.7	0.236
Trial	15–24	217	13	94.1	90.0 to 96.6	0.001
Non-trial	15–24	216	38	82.5	76.7 to 87.0	0.001
Two-year survival
Trial	15–19	203	27	86.8	81.3 to 90.7	<0.001
Non-trial	15–19	134	46	65.7	57.0 to 73.1	<0.001
Trial	20–24	36	8	77.9	60.5 to 88.3	0.381
Non-trial	20–24	130	40	69.3	60.6 to 76.5	0.381
Trial	15–24	239	35	85.4	80.3 to 89.3	<0.001
Non-trial	15–24	264	86	67.5	61.5 to 72.8	<0.001