Table 2

Mid-year UK cystic fibrosis population by year, age, and sex based on data held to 1995

Year		Age (years)
Year		0–< 1	1–< 5	5–< 15	15	16	17–< 25	25–< 35	35+	45+	Total
1986
Male	135	642	1223	140	106	579	162	28		3015
Female	132	564	1057	114	76	442	129	33		2547
Total	267	1206	2280	254	182	1021	291	61		5562
%	4.8	21.7	41.0	4.6	3.3	18.4	5.2	1.1		100.0
1987
Male	148	601	1291	91	140	596	207	28		3102
Female	147	560	1083	81	112	478	141	34		2636
Total	295	1161	2374	172	252	1074	348	62		5738
%	5.1	20.2	41.4	3.0	4.4	18.7	6.1	1.1		100.0
1988
Male	160	582	1328	103	88	663	244	30		3198
Female	140	570	1101	100	74	528	166	39		2718
Total	300	1152	2429	203	162	1191	410	69		5916
%	5.1	19.5	41.1	3.4	2.7	20.1	6.9	1.2		100.0
1989
Male	161	608	1332	108	101	672	276	34		3292
Female	147	566	1131	95	94	514	207	48		2802
Total	308	1174	2463	203	195	1186	483	82		6094
%	5.1	19.3	40.4	3.3	3.2	19.5	7.9	1.3		100.0
1990
Male	158	596	1371	116	103	692	317	36		3389
Female	118	562	1179	85	92	538	227	54		2855
Total	276	1157	2550	201	195	1230	544	90		6244
%	4.4	18.5	40.8	3.2	3.1	19.7	8.7	1.4		100.0
1991
Male	147	619	1371	118	113	687	366	44		3465
Female	131	549	1201	86	83	557	253	59		2919
Total	278	1168	2572	204	196	1244	619	103		6384
%	4.4	18.3	40.3	3.2	3.1	19.5	9.7	1.6		100.0
1992
Male	126^*	620	1410	96	117	710	399	51		3529^*
Female	120^*	531	1245	86	83	558	286	61		2970^*
Total	246^*	1151	2655	182	200	1268	685	112		6499^*
1993
Male	121^*	585^*	1436	118	93	732	425	67		3577^*
Female	94^*	512^*	1280	83	83	555	311	68		2986^*
Total	215^*	1097^*	2716	201	176	1287	736	135		6563^*
1994
Male	96^*	549^*	1453	129	116	729	451	81		3604^*
Female	93^*	458^*	1290	114	79	564	324	74		2996^*
Total	189^*	1007^*	2743	243	195	1293	775	155		6600^*
1995
Male	90^*	487^*	1473	126	125	742	487	89	14	3633
Female	86^*	436^*	1275	115	108	575	346	62	21	3024
Total	176^*	923^*	2748	241	233	1317	833	151	35	6657

Notes: (1) The experience of UKCFS is that population estimates are subject to systematic bias and are continually revised upwards due to problems of ascertainment.1 The data items marked ^* are likely to be serious time related underestimates and thus give a false picture of trends in the data. (2) Data for those aged over 45 years are not given before 1995 as the UKCFS does not publish any aggregate results involving fewer than 10 persons for reasons of confidentiality.11