Illness caused by smoking

Smoking has more than 50 ways of making life a misery through illness and more than 20 ways of killing you. In general, smokers endure poorer health than non-smokers. It has been estimated that, in England, 364,000 patients are admitted to NHS hospitals each year due to diseases caused by smoking. This translates into 7,000 hospital admissions per week, or 1,000 day. [1]  In 1997/98, cigarette smoking caused an estimated 480,000 patients to consult their GP for heart disease, 20,000 for stroke and nearly 600,000 for COPD.  1

 

Half of all teenagers who are currently smoking will die from diseases caused by tobacco if they continue to smoke.  One quarter will die after 70 years of age and one quarter before, with those dying before 70 losing on average 21 years of life. [2]  It is estimated that between 1950 and 2000 six million Britons, 60 million people worldwide, would have died from tobacco-related diseases. [3]

 

Non-lethal illness

Smokers face a higher risk than non-smokers for a wide variety of illnesses, many of which may be fatal (see “Deaths caused by smoking” below). However, many medical conditions associated with smoking, while they may not be fatal, may cause years of debilitating illness or other problems. These include: [4]

 

Increased risk for smokers

Acute necrotizing ulcerative gingivitis (gum disease)

Muscle injuries

Angina (20 x risk)

Neck pain

Back pain

Nystagmus (abnormal eye movements)

Buerger’s Disease (severe circulatory disease)

Ocular Histoplasmosis (fungal eye infection)

Duodenal ulcer

Osteoporosis (in both sexes)

Cataract (2 x risk)

Osteoarthritis

Cataract, posterior subcapsular (3 x risk)

Penis (Erectile dysfunction)

Colon Polyps

Peripheral vascular disease

Crohn’s Disease (chronic inflamed bowel)

Pneumonia

Depression

Psoriasis (2 x risk)

Diabetes (Type 2, non-insulin dependent)

Skin wrinkling (2 x risk)

Hearing loss

Stomach ulcer

Influenza

Rheumatoid arthritis (for heavy smokers) [5]

Impotence (2 x risk)

Tendon injuries

Optic Neuropathy (loss of vision, 16 x risk)

Tobacco Amblyopia (loss of vision)

Ligament injuries

Tooth loss

Macular degeneration (eyes, 2 x risk)

Tuberculosis

Function impaired in smokers

Ejaculation (volume reduced)

Sperm count reduced

Fertility (30% lower in women)

Sperm motility impaired

Immune System (impaired)

Sperm less able to penetrate the ovum

Menopause (onset 1.74 years early on average)

Sperm shape abnormalities increased

Symptoms worse in smokers

Asthma

Graves’ disease (over-active thyroid gland)

Chronic rhinitis (chronic inflammation of the nose)

Multiple Sclerosis

Diabetic retinopathy (eyes)

Optic Neuritis (eyes)

Disease more severe or persistent in smokers

Common cold

Pneumonia

Crohn’s Disease (chronic inflamed bowel)

Tuberculosis

Influenza

 

 

Deaths caused by smoking

One in two long-term smokers will die prematurely as a result of smoking – half of these in middle age. The most recent estimates show that around 114,000 people in the UK are killed by smoking every year, accounting for one fifth of all UK deaths. [6] Most die from one of the three main diseases associated with cigarette smoking: lung cancer, chronic obstructive lung disease (bronchitis and emphysema) and coronary heart disease.  The table below shows the percentage and numbers of deaths attributable to smoking, based on the latest available detailed breakdown (2002 data).

 

Estimated percentages and numbers of deaths attributable to smoking in the UK  by cause

(based on 2002 mortality data) 1, [7]

 

Deaths from disease estimated to be caused by smoking

 

Number

As % of all deaths from disease

 

Men

Women

Total

Men

Women

Total

Cancer

 

 

 

 

 

 

Lung

18002

10032

28034

89

75

84

Upper respiratory

525

85

610

74

50

66

Oesophagus

3248

1743

4991

71

65

68

Bladder

1521

318

1839

47

19

37

Kidney

788

72

860

40

6

27

Stomach

1385

266

1651

35

11

26

Pancreas

670

923

1593

20

26

23

Unspecified site

 

 

 

 

 

 

Myeloid Leukaemia

264

131

395

19

11

15

Respiratory

 

 

 

 

 

 

Chronic obstructive lung disease

    13193

10685

23878

86

81

84

Pneumonia

3162

2900

   6062

23

13

17

Circulatory

 

 

 

 

 

 

Ischaemic heart disease

14182

6361

20543

22

12

17

Cerebrovascular disease

3064

3764

6828

12

9

10

Aortic aneurysm

3652

1939

5591

61

52

57

Myocardial degeneration

6670

2936

9606

22

12

15

Atherosclerosis

63

56

119

15

7

10

Digestive

 

 

 

 

 

 

Ulcer of the stomach or duodenum

    907

1008

1915

45

45

45

Total caused by smoking

    71,296

43,219

114,597

 

 

 

Preventable by smoking * :

 

 

 

 

 

 

Parkinson's

1369

549

1918

55

28

43

Cancer of the endometrium

 

260

260

 

17

17

Total prevented by smoking

 

 

 

 

 

 

Deaths from all causes due to smoking (causes less prevented)

69,927

42,410

112,337

 

 

 

*  Studies have shown that smoking appears to have a protective effect against the onset of some diseases such as endometrial cancer.  However, the positive effect is so small in comparison with the overwhelming toll of death and disease caused by smoking that there is no direct public health benefit.

 

Deaths caused by smoking are five times higher than the 22,833 deaths arising from: traffic accidents (3,439); poisoning and overdose (881); alcoholic liver disease (5,121); other accidental deaths (8,579); murder and manslaughter (513); suicide (4,066); and HIV infection (234) in the UK during 2002. 7 World-wide, almost 5 million die prematurely each year as a result of smoking. Based on current trends, this will rise to 10 million within 20 years. [8]

 

 

References


[1]  Nicotine Addiction in Britain.  A report of the Tobacco Advisory Group of the Royal College of Physicians.  RCP, 2000 (for percentage of smoking-related deaths).    Mortality statistics 2002.,  Office for National Statistics, 2002; General Register Office for Scotland, 2002; Registrar General Northern Ireland, Annual Report, Statistics & Research Agency, 2002.

[2] Peto R.  Mortality in relation to smoking: 40 years’ observations on male British doctors.  BMJ 1994; 309: 901-911

[3] Peto R et al.  Mortality from smoking in developed countries, 1950-2000.  Oxford Medical Publications, 1994.

[4]  Cigarettes: what the warning label doesn’t tell you. American Council on Science & Health, 1997.

[5]  Hutchinson, D et al. Annals of Rheumatic Diseases, 2001; 60: 223-7 

[6] Peto, R. et al Mortality from smoking in developed countries 1950-2000 (2nd edition) Oxford University Press, Oxford.  View report

[7] Mortality statistics 2002.,  Office for National Statistics, 2002; General Register Office for Scotland, 2002; Registrar General Northern Ireland, Annual Report, Statistics & Research Agency, 2002.

[8] The World Health Report 2003.  World Health Organization, 2003.