London Borough Fertility Rates and Life Tables (2000-02) BSPS 14 September 2004 John Hollis and Georgia Hay Demography Team Data Management and Analysis Group Data Management and Analysis Outline • Why is GLA doing this? • Fertility – Data issues – Hadwiger smoothing of rates – Findings • Life Tables – Data Issues – Findings and Comparisons • Conclusions and Discussion Data Management and Analysis What are the results for? • GLA prepares annual rounds of demographic projections at borough level – Need local fertility and survival rates – Projections act as constraints for ward level and ethnic group projections • London has over 100k births and about 60k deaths per year – therefore sufficient data for local analyses • Fertility differs across the boroughs – partly due to marital status, ethnic and social differences • Mortality also differs considerably – due to smaller numbers of events the results used in projections are for 3 borough groupings Data Management and Analysis Fertility - Data • Births by single years of age of mother (<16 to 49+) for 2000, 2001, and 2002 – Confidentiality issues in 2002 affect City of London and youngest ages and 45+ in several boroughs – 2002 data was received ‘under license’ from ONS – NB rates not prepared for City (only 57 births in 2002). Models use Central London rates for City • ONS MYE for females 15(1)49 for 2001 (revised) – Impact of Sept. 9th re-revisions (mainly for Southwark, Wandsworth and Westminster) to be followed up Data Management and Analysis Hadwiger Smoothing • Use of single-peak Hadwiger expression is embedded in GLA population projection model • 4-parameter expression – – – – TFR Modal Age of fertility Mean Age of fertility Variance • New inputs last prepared using 1995-97 births – For some boroughs the 1995-97 raw data exhibited signs of a second (lower) fertility peak, or ‘shoulder’, in the early 20s Data Management and Analysis Example of the 'Shoulder' 0.14 FERTILITY RATE 0.12 HADWINGER VALUE 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Findings • Many boroughs now clearly exhibit two peaks – The rest show a ‘shoulder’ • TFRs have mostly declined (only 9 exceptions) • Modal and Mean ages have increased – 1995-97 8 boroughs had mode over 30 cf. 20 (highest 34.3) – Modal age in London is now 31.2 – 1995-97 4 boroughs had mean over 30 cf. 6 (highest 32.0) • Double peaks appear to have held means down • Variance has increased in most boroughs – Poorer fit a consequence of double peaks Data Management and Analysis Greater London ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age of mother Data Management and Analysis Central Boroughs ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Rest of Inner London Boroughs ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Outer London Boroughs ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Lambeth ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Newham ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Tower Hamlets ASFR 2000-02 0.14 FERTILITY RATE HADWINGER VALUE 0.12 0.1 0.08 0.06 0.04 0.02 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Age Data Management and Analysis Next Steps? • Investigating 2 (and 3) Peak Hadwiger model • ‘Slice out’ the early peak from raw rates and smooth the rest? – Then add back the peak before projecting • Split births into two distributions and smooth each? • Ignore smoothed rates entirely in GLA models? – Use ‘raw’ 2000-02 rates as starting point – Integrate changing rates just by the use of GAD projected TFR as a scaling factor to all base year rates • Any more ideas? Data Management and Analysis The Life Table • Shows a hypothetical cohort, usually 100,000 people, diminished gradually by deaths • Contains members of only one sex • Is a standardised way of comparing different populations • Offers population survival rates for use in population projections Data Management and Analysis Life Table - Data • Deaths by gender and single year of age, calendar years 2000 to 2002 – Vital Statistics, ONS – 2002 data received ‘under license’ from ONS • Deaths by age of children under 1 – calendar years 2000 and 2001 – 2002 data not supplied by ONS • Mid-year population estimates by gender and single year of age, mid-2000 to mid-2002, Population Estimates, ONS Data Management and Analysis Why not use just the 2001 MYE? It is more usual to use a single year of MYE ie mid-2001 However, there were unusually low numbers of 82 and 83 year olds in 2001 – resulting from low births at the end of the First World War ONS revised mid-2000 estimates recalculated by GLA to conform to changes to the mid-2001 revised estimates – mostly affects males aged 25-49 Therefore, averaged three years population estimates as well as deaths Data Management and Analysis Female deaths by age – Vital Statistics 1,400 1,200 Number of deaths 1,000 800 600 400 200 0 76 77 78 79 80 81 2000 Data Management and Analysis 82 2001 83 84 2002 85 average 86 87 88 89 Female population by age – Mid-Year Estimates 25 20 Thousands 15 10 5 0 76 77 78 79 80 81 2000 Data Management and Analysis 82 2001 83 84 2002 85 average 86 87 88 89 Female death rates - mx 0.160 0.140 mx - death rate 0.120 0.100 0.080 0.060 0.040 0.020 76 77 78 79 80 81 82 mx - 2001 MYE Data Management and Analysis 83 84 mx - Average MYE 85 86 87 88 89 Female Life Table mortality rates - qx 0.160 0.140 qx - Life Table mortality rate 0.120 0.100 0.080 0.060 0.040 0.020 76 77 78 79 80 81 82 qx - 2001 MYE Data Management and Analysis 83 84 qx - Average MYE 85 86 87 88 89 Expectation of Life at Birth by London Borough - Males England & Wales: 75.9 Highest: Rutland, East Dorset, Hart: 79.5 Lowest: Manchester: 71.0 Expectation of Life at Birth Greater London: 75.83 Central Boroughs: 76.20 Rest of Inner Boroughs: 74.01 Inner Boroughs: 74.47 Outer Boroughs: 76.55 Data Management and Analysis Males 77.07 to 78.49 (7) 75.64 to 77.07 (11) 74.21 to 75.64 (8) 72.79 to 74.21 (6) No data available (1) Expectation of Life at Birth by London Borough - Females England & Wales: 80.6 Highest: Kensington & Chelsea: 83.9 Lowest: Manchester: 77.3 Greater London: 80.74 Central Boroughs: 81.96 Rest of Inner Boroughs: 79.50 Inner Boroughs: 80.07 Outer Boroughs: 81.15 Data Management and Analysis Expectation of Life at Birth Females 82.66 to 83.92 (2) 81.39 to 82.66 (10) 80.13 to 81.39 (7) 78.87 to 80.13 (13) No data available (1) To we rH am La lets m So bet ut h hw Re Ne ark st w of Inn Isl ham i er ng Bo ton rou Le ghs w Gr isha ee m nw Ha ich c Wa C kney a Inn ltha md er m en Bo For ro es ug t W Ba an hs rki ds * w ng an Ha orth d D rin Ha mm ag gey en ers mi Ho ham th u Gr an nslo d e We ate Fu w r stm Lo lha ins ndo m ter n ,C * it y o Ce Ea f nt lin ral g Bo Br ro en ug t Ou Hill hs * ter ing Bo don ro u Cr ghs oy Re do db n r Ha idge ve rin En g f ie l Be d xle Su y Kin tt Me on gs to n u B rt on po rom Ric n T le hm ha y on me du s po Ba Ke r n n ns Th et ing am ton e H an ar s d C ro he w lse a Years Expectation of life at birth - male 80.0 78.0 76.0 74.0 72.0 70.0 68.0 66.0 1990-92 Data Management and Analysis 1995-97 2000-02 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To Ne we wh r H am am Le let wi s sh Re Isl am st i n g of Inn La ton er mb Bo eth ro W Ba a ug rki Wa nds hs ng lth wo an am rth d D Fo ag res en t So ham ut hw Inn er Ha ark Bo ck ro ney ug Ho hs * un s Ha low rin Gr ge ee y nw Cr ich oy Gr do ea ter Su n Lo tton nd on Ca * md Ha en ve rin Ea g lin Ou ter En g Bo field ro ug Kin h gs Be s to H x n u ill ley po ing n T do ha n Ha We me mm stm ers ins B s mi ter ren th , C t an ity d F of u Re lha db m rid ge M Ce ert nt on ral Bo Bar Ric ro net hm ug on h d u B s* ro p Ke on ml ns Th ey ing am ton es H an ar d C row he lse a Years Expectation of life at birth - female 86.0 84.0 82.0 80.0 78.0 76.0 74.0 1990-92 Data Management and Analysis 1995-97 2000-02 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To Ne we wh r H am am Le let wi s s Re Isl ham st i n g of Inn La ton er mb Bo et h W rou Ba a g n h rk Wa ds s ing lth wo an am rth d Da Fore ge st So nham ut hw In ne H ark r B ac or kne ou y g Ho hs * un s Ha low rin Gr ge ee y nw Cr ich oy Gr do ea te Su n r L tto on n do n Ca * md Ha en ve rin Ea g lin Ou te En g r B f ie or ld ou gh Ki ng Be s sto n Hill xley up ing on do Th n Ha We am m stm es me i n rsm st Br ith er, ent an City dF o u f Re lha db m rid g M e Ce er nt t on ral Bo Bar Ri n ch ro ug et m on hs d up Bro * Ke on m ns Th ley ing am to es n H an ar d C row he lse a Years Expectation of life at birth – comparison of males and females 86 84 82 80 78 76 74 72 70 68 66 Male Data Management and Analysis Female * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. W alt ha m F Ho ore un st Gr slo ee w Re nwic d h W es H brid tm ill ge ins ing te do r, C n So ity ut of hw Isl ark ing to Ba n rn e Be t xle En y fi B eld W rom an ds ley wo La rth m Ou H bet a te ri h r n Ki ng T Bor gey sto ow ou n er H ghs up a on ml Th ets am Ca es m Ha den ve Gr ea Cr ring te oy Ri r L do ch on n m do Re ond n * st of upo Eali n n Inn T g er ham Bo e ro s ug In ne h r B Su s or tto ou n gh Ne s * w Le ham w Ce ish nt am ral Bo Br ro en ug t hs Ba rk M * ing e an H rt on d ac Ke Da kn n ge ey Ha sin nh m gto am me n H rsm an arr ith d Ch ow an els d F ea ulh am Years Change in life expectation at birth between 1995-97 and 2000-02 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 -0.50 Males Data Management and Analysis Females * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. W es tm Is ins ling te to r, C n Ho ity o u f Hi nslo llin w So gdo ut n hw W La ark alt m ha be m t W Fo h an re ds st w Re ort db h rid Re st To Hari ge of we ng Inn r H ey er am Bo let ro s ug Ca hs md En en In f ne H ield r B ac or kn ou ey gh s* Ba Ha rne ve t r Ne ing wh a Su m tto Ea n Gr ea Lew ling te i Ou r Lo sham te nd r B on Ri ch or * m ou on gh d up M s e on rt Th on Ce am Ki nt es ng ra l sto B Be x o n up roug ley on hs Th * am es Gr Bre ee nt Ha nw m me Br ich om rsm ith H ley an arr Ba d F ow rk ulh Ke ing ns an Cr am ing d D oy to ag don n an enh d C am he lse a Years of life left after age 75 Change in expectation of life left at age 75 between 1995-97 and 2000-02 2.50 2.00 1.50 1.00 0.50 0.00 -0.50 -1.00 Males Data Management and Analysis Females * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. er Ha La mle So mb ts ut eth Re h st Ne wa of w rk In ne Isl ha m r B ing or to Le o ug n w h G ish s re a en m Ha w ic W c h a l C kne t a h In a m y ne m d r B F en o or Ba W r ou e st rk a n gh in ds s g Ha an H wo * m d a rth m D rin er ag g sm e e it h H n h y o a W Gre and uns m e s at F lo tm er ulh w in Lo am st n er do ,C n ity * Ce o E nt al f ra l B B ing o r re o O H ug n t ut il hs er lin * Bo gd ro on u Cr gh o Re yd s db on Ha rid g ve e r En ing f Be ie ld xle Ki Su y ng t st M ton on e r Ri u p B to ch on rom n m Th ley on am d Ke up B ns on a es in Th rn e gt on am t an H es d a rr C o he w lse a To w Age 79.0 10.0 78.0 9.0 77.0 8.0 76.0 7.0 75.0 6.0 74.0 5.0 73.0 4.0 72.0 3.0 71.0 2.0 70.0 1.0 69.0 0.0 Expectation of life at birth Data Management and Analysis % with 'not good' health and a limiting long-term illness Per cent Comparison of expectation of life at birth and percentage of people with 'not good' health and a limiting long-term illness - males * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To N w ew er h H am Le aml Re wi ets s st Is h am of l In L ing ne a to r B mb n Ba o et W rk Wa a n ro u h in lt d gh g ha sw s an m o r d D Fo th ag re s So en h t a u t m In ne H hwa a r B c rk or kn o ey Ho ugh un s * Ha slo G rin w re ge en y Cr w ic G oy h re d at er Su on Lo tto nd n Ca on m * Ha d e ve n r Ea ing O ut er E ling Bo nfie Ki ro ld ng ug st Be hs on u p Hill xle Ha W on ing y m es Th d o m tm am n e r in sm s e ith ter, Br s e an Ci n t d ty F o Re ulha f db m rid Ce g M nt er e ra Ri t l B B on ch o r arn m on ou e d g t Ke up Br hs ns on om * in Th ley gt on am an H es a d C rro he w lse a Age 85.0 82.0 81.0 6.0 80.0 79.0 76.0 Expectation of life at birth Data Management and Analysis % with 'not good' health and a limiting long-term illness Per cent Comparison of expectation of life at birth and percentage of people with 'not good' health and a limiting long-term illness - females 12.0 84.0 10.0 83.0 8.0 4.0 78.0 2.0 77.0 0.0 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To L w am er b H et So am h ut let h s Ha wa ck rk Ca ne Re m y st Is d e of In Gr ling n n e t In er en on ne Bo w r B ro ich or ug o h Ha Le ugh s m Ce w m n ish s * e r tr N sm al e am ith Bo wh an rou a m W e s W d F g hs tm a ulh * in nd a W ste sw m a l r, or Ba th C th rk a m ity in g F o an H ore f G d D a r st re a in at ge ge er n y Lo ha m Ho n do n un * sl Ea ow Hi li llin ng gd on O B ut C re er r o n t Bo yd Ke ro on ns ug in h gt on R Enf s an e db ie ld d rid C g he e Br lse om a Be ley xl Ba e y r Ki M ne ng er t t st Su on on t Ri u p Ha to ch on ve n m Th r in on a g d up H me on a s Th rro w am es Years lived during working age (16-64) 48.0 47.0 10.0 8.0 46.5 6.0 45.5 Expectation of years lived between 16 and 64 Data Management and Analysis Unemployment rate Unemployment rate Comparison of unemployment rate and average number of years lived during working age - male (16-64) 16.0 14.0 47.5 12.0 4.0 46.0 2.0 0.0 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. Is l Le ing wi ton s La h a Re m m st Ne b e of t In So wh h ne u a m r B thw or a r To Gr o ug k e In w e en hs ne r H w r B a ich or mle ou ts Ha gh s Ba Ha rk c * Ha kne m ing m y e r an C ring sm d a e ith D a md y an gen en d h W F a W Wa a n ulh m e s lt d am tm ha sw in m or st Fo th er r , C es ity t o G B f re at E ren er n t Lo fie n d ld o Ce Ba n * nt r ra C n l B r o et o r yd ou on gh s S O ut * ut er E ton Bo ali ro ng Ha ugh s Ho ver i n un g B r s lo w Re om db ley Hi rid llin g gd e Ke o M n er n Ri sing t o Be n ch to x m n Ki on an H le y ng d d a r st up C ro on o he w u p n T lse on ha a Th me am s es Years lived during working age (16-59) 43.6 43.5 8.0 43.3 6.0 43.2 43.0 42.9 Expectation of years lived between 16 and 59 Data Management and Analysis Unemployment rate Unemployment rate Comparison of unemployment rate and average number of years lived during working age - female (16-59) 12.0 10.0 43.4 43.1 4.0 2.0 0.0 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. er Ha La mle So mb ts ut eth Re hw st N of e w a rk In ne Isl ha m r B ing or to Le o ug n w h G ish s re a en m Ha w ic W c h a C kn In ltha a m ey ne m d r B F en o or Ba W r ou e st rk a n gh in ds s g Ha an H wo * m d a rth m D rin er ag g sm e e it h H n h y o a W Gre and uns m e s at F lo tm er ulh w in Lo am st n er do ,C n ity * Ce Ea of nt ra l l B B ing o r re o O H ug n t ut il hs er lin * Bo gd ro on u Cr gh o Re yd s db on Ha rid g ve e r En ing fie B e ld xl Ki Su e y ng t st M ton on e Ri u p B rto ch on rom n m Th ley on am d Ke up e B ns on a s in rn T gt ha et on m an H es d a rr C o he w lse a To w Age 79.0 100.0 78.0 90.0 77.0 80.0 76.0 70.0 75.0 60.0 74.0 50.0 73.0 40.0 72.0 30.0 71.0 20.0 70.0 10.0 69.0 0.0 Expectation of life at birth Data Management and Analysis % White Per cent Comparison of life expectancy at birth and percentage of population in White ethnic group - males * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. er Ha La mle t So mb s e u Re th th st Ne wa of w rk In ne Isl ha m r B ing or ton Le o ug wi hs s Ca h am m G re d e e n In ne H nw Ba r B a c ich k rk in W or o ne y g u an a n gh d ds s W D w * a l ag ort th e h Ha am nh m Fo am m er r H sm a e st ith Ho ring G an un e y re d s at F low er ul W Lo ham es nd tm on Ce in nt ste Ea * ra r, lin l B Ci g o r ty ou of Hi g h llin s O gd * ut on er Bo Bre ro n t Ha ugh ve s Cr r in Re oyd g db on rid En ge f Ki Be ie ld ng xle st Su y on u p M tto on e n Ri Th rton ch a m B r me on o d m s Ke up le ns on Ba y r in n Th e gt am t on an H es d a rr C o he w lse a To w Years lived after age 16 64.0 50.0 63.0 45.0 62.0 40.0 61.0 35.0 60.0 30.0 59.0 25.0 58.0 20.0 57.0 15.0 56.0 10.0 55.0 5.0 54.0 0.0 Expectation of years lived after age 16 Data Management and Analysis % working 49 hours per week and over Per cent Comparison of expectation of years lived after age 16 and percentage of people aged 16 to 74 working 49 hours per week or more - males * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To N w ew er h Ha a m Le ml Ba wi ets s rk Is h am in lin g an L gt d a m on Re D st a b o f W ge eth a In n n h n d a W er B sw m a l o or th ro th a m ug h So For s e ut s t Ho hwa In G un rk ne re slo r B en w or w i ou ch Ha gh s ri * Ha nge ck y n G Su ey re t at Cr ton er oy Lo d o nd n Ha on ve * Ca r in m g d En en fie E a ld O ut l er Be ing Ha Kin x B or le y m gst m on o e r u Hi ug sm p llin hs ith on gd an Tha on d m Fu es lh a M m W Re ert es db on tm rid i Ri ns g ch te Ba e m r, rn on Ci et ty d up o on B f r Ce e Th n nt a t ra B me Ke l ns Bo rom s in ro le gt ug y on an H hs * d a rr C o he w lse a Years lived after age 16 65.0 Per cent Comparison of expectation of years lived after age 16 and percentage of people aged 16 to 74 working 49 hours per week or more - females 69.0 25.0 68.0 20.0 67.0 66.0 15.0 64.0 10.0 63.0 5.0 62.0 61.0 0.0 Expectation of years lived after age 16 Data Management and Analysis % working 49 hours per week and over * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. To L w am er b H et So am h ut lets h Ha wa ck rk n C Re a m ey st Is d e of l In Gr ingt n ne e e on In r n ne Bo w r B ro ich or ug o h Ha Le ugh s m Ce wi s m n e r tra N sh a * sm l e m ith Bo r wha an oug m W e s W d F hs tm a ulh * in nd am W ste sw a l r, ort Ba th C h a m ity rk in F of g an H ore G d D a ri st re a ng at ge e er n y Lo ha n m Ho do un n * sl Ea ow Hi li llin ng gd o O Br n ut C e er r o n t Bo yd Ke ro on ns ug in gt E h on R nf s an e db ie ld d rid C g he e Br lse om a Be ley xl Ba e y r Ki M n et ng er t st Su on on t Ri u p Ha to ch on ve n m Th r in on a g d up H me on a s Th rro w am es Years lived 48.0 47.0 20.0 46.5 45.5 Expectation of years lived between 16 and 64 Data Management and Analysis % with no qualification Per cent Comparison of percentage of working age people with no qualifications and average number of years lived during working age - male (16-64) 40.0 35.0 47.5 30.0 25.0 15.0 46.0 10.0 5.0 0.0 * includes data for the City of London, which has too small a population to provide a statistically significant Life Table. Conclusions and Issues • Problems with disclosure control • We need to investigate whether in future ONS will be able to provide us with unadjusted data ‘under license’ • Fertility • How to cope with the double peak, and • How to best incorporate into the model • Life Tables • Continuing problem with the low numbers of births at the end of the First World War, although this will diminish as this cohort ages Data Management and Analysis