Table 4

Birth admission costs and costs in subsequent admissions by year of follow-up and gestational age

		Birth admission	Year 1	Year 2	Year 3	Year 4	Year 5	Year 6	Year 7	Year 8
<28	n	1730	1730	1710	1705	1701	1697	1695	1695	1691
	Mean	£67 168	£4885	£2726	£1539	£1347	£933	£848	£656	£669
	SD	£33 071	£10 937	£11 342	£6446	£8032	£4895	£7961	£4333	£5248
28–29	n	2089	2089	2071	2069	2067	2067	2066	2065	2064
	Mean	£38 616	£2893	£1410	£716	£703	£567	£587	£564	£522
	SD	£18 893	£7610	£6564	£3033	£4419	£4252	£4289	£5511	£4719
30–31	n	3227	3227	3218	3217	3214	3213	3212	3211	3211
	Mean	£24 640	£2029	£754	£636	£421	£527	£434	£330	£377
	SD	£12 231	£5698	£3309	£5178	£2225	£4082	£4119	£2142	£4805
32	n	2656	2656	2646	2645	2644	2642	2642	2641	2639
	Mean	£16 803	£1813	£842	£592	£539	£442	£370	£344	£240
	SD	£8056	£6004	£4578	£3955	£4104	£2837	£2899	£2094	£1267
33	n	4050	4050	4026	4021	4018	4017	4016	4015	4015
	Mean	£12 212	£1387	£667	£399	£311	£325	£256	£232	£194
	SD	£7316	£5931	£4234	£2819	£1695	£2733	£1571	£1458	£1218
34	n	7292	7292	7255	7247	7244	7242	7240	7240	7240
	Mean	£7732	£1399	£655	£396	£338	£251	£278	£262	£209
	SD	£6570	£7269	£5340	£3547	£3224	£1829	£2982	£2316	£1755
35	n	11 663	11 663	11 614	11 601	11 593	11 590	11 588	11 588	11 583
	Mean	£4052	£1086	£503	£311	£275	£259	£243	£226	£218
	SD	£6990	£5883	£4195	£2625	£2636	£2759	£2801	£2622	£2701
36	n	23 346	23 346	23 273	23 255	23 249	23 246	23 239	23 237	23 235
	Mean	£2325	£1030	£437	£314	£264	£279	£242	£205	£181
	SD	£6235	£6061	£3141	£3468	£2378	£3700	£2913	£2901	£2454
37	n	54 001	54 001	53 889	53 865	53 845	53 836	53 824	53 818	53 812
	Mean	£1166	£744	£356	£247	£233	£201	£196	£167	£159
	SD	£4709	£4012	£2953	£2296	£2516	£1921	£2482	£1677	£1887
38	n	137 926	137 926	137 711	137 654	137 616	137 596	137 575	137 563	137 553
	Mean	£725	£570	£291	£208	£191	£178	£164	£147	£143
	SD	£3839	£3438	£2347	£2079	£1990	£1765	£1642	£1608	£1952
39	n	231 376	231 376	231 150	231 072	231 028	230 993	230 970	230 950	230 932
	Mean	£502	£453	£239	£175	£160	£160	£148	£127	£121
	SD	£3058	£2962	£2157	£1800	£1569	£1703	£1743	£1484	£1612
40	n	288 065	288 065	287 821	287 748	287 691	287 663	287 644	287 627	287 607
	Mean	£455	£394	£227	£164	£149	£142	£133	£122	£109
	SD	£2860	£2690	£2071	£1899	£1496	£1412	£1401	£1467	£1352
41	n	208 757	208 757	208 576	208 528	208 501	208 480	208 460	208 447	208 436
	Mean	£519	£358	£219	£158	£151	£154	£135	£120	£115
	SD	£2585	£2419	£1898	£1614	£1494	£1926	£1582	£1426	£1519
42	n	41 958	41 958	41 917	41 902	41 896	41 890	41 888	41 881	41 880
	Mean	£641	£391	£224	£159	£168	£152	£131	£118	£116
	SD	£2849	£2935	£1702	£1360	£2056	£1582	£1302	£1523	£1637

The TIGAR cohort excludes babies who died within their birth admission. As a result, for subsequent admissions all babies were alive at the beginning of the first year.