Table 1

Year of birth for UK cystic fibrosis cases, incidence, and estimated births based on data held up to 1995

Year	Cases	UK births (1000)	Births/case	Estimated cystic fibrosis births1-150
68	367	947.3	2581	392
69	356	920.2	2585	381
70	388	903.9	2330	374
71	407	901.8	2216	373
72	326	834.9	2561	346
73	309	779.6	2523	323
74	316	737.2	2333	305
75	291	697.4	2397	289
76	299	675.6	2260	280
77	278	657.0	2363	272
78	292	686.9	2352	284
79	302	734.6	2432	304
80	302	753.7	2496	312
81	302	730.9	2420	303
82	356	719.1	2020	298
83	301	724.5	2407	300
84	310	729.6	2354	302
85	311	750.7	2414	311
86	276	754.9	2735	313
87	294	775.6	2638	321
88	326	787.6	2416	326
89	290	777.3	2680	322
90	295	798.6	2707	331
91	259	792.5	3060	328
92	239	781.0	3268	323
93	202	761.3	3769	315
94	205	750.3	3660	311
Aggregated incidence
Time period
1968–87	6383	15415	2415
1968–77	3337	8055	2414
1978–87	3046	7360	2416