What's the difference between causation and correlation?

Causation


Definition:

  • (n.) The act of causing; also the act or agency by which an effect is produced.

Example Sentences:

  • (1) Because of the dearth of epidemiological clues as to causation, studies with experimental animal models assume greater importance.
  • (2) The causative organisms included viruses, fungi, and bacteria of both high and low pathogenicity.
  • (3) We have recently described a nonnucleoside compound that specifically inhibits the reverse transcriptase of human immunodeficiency virus type 1 (HIV-1), the causative agent of AIDS.
  • (4) As regards other factors, however, whose causative role has hitherto been considered proven or at least very probable, no differences were found between patients and controls (e.g.
  • (5) There was a larger difference in incidence between countries than between sexes, which suggests important genetic or environmental factors in the causation of hip fracture.
  • (6) Various misconceptions about dietary carcinogens, pesticide residues, and cancer causation are discussed.
  • (7) ketoconazole when the causative organism is madurella mycetomis.
  • (8) More Gram-positive infections are now being reported and the sensitivity of the causative organisms varies.
  • (9) The most common causative organisms are Campylobacter jejuni and Giardia lamblia.
  • (10) This virus is related to HIV-1, the causative agent of the AIDS epidemic now spreading in Central and East Africa, as well as the USA and Europe (see ref.
  • (11) The results provide further in vivo evidence that ROI are causative agents in H liberation during reperfusion of the ischemic gut.
  • (12) Dairy pipeline cleaners were the single most common causative substance, injuring ten toddlers (mean age 1.6 years), perforating the esophagus in two.
  • (13) We used a published algorithm to assess the suspected reactions for drug causation with the following results: 40 (14%) unlikely; 193 (66%) possible; 56 (19%) probable; and 3 (1%) definite.
  • (14) In the remaining 104 cases where the causative bacteria were not identified, the efficacy rate was 92%, CTRX being "excellent" in 42 cases and "effective" in 54.
  • (15) Evidence was given suggesting that the increased proportion of paranoid immigrants was probably due to social selection, while the increased proportion of somatoform immigrants could be explained by the social causation theory.
  • (16) It should be considered as a causative agent in culture-negative cases of endocarditis and also when a gram-negative rod is isolated which is sensitive to all antibiotics.
  • (17) The present investigation utilized this long-term cohort study to assess the role of drinking and cigarette smoking habits in the causation of liver cancer.
  • (18) Bacteriologically, successful eradication of causative organisms was confirmed in all the 4 children who underwent the test.
  • (19) While there are many potential causative factors, erroneous concepts of IOL positioning and design appear to have led to PBK with many iris-supported and anterior chamber lens styles.
  • (20) This study points to the causative mechanism of cyclosporin immunosuppression and emphasized the dynamic role of ions as modulators of normal cell proliferation.

Correlation


Definition:

  • (n.) Reciprocal relation; corresponding similarity or parallelism of relation or law; capacity of being converted into, or of giving place to, one another, under certain conditions; as, the correlation of forces, or of zymotic diseases.

Example Sentences:

  • (1) In each sheep there was a significant negative correlation between the glucose and corticosteroid concentrations in both maternal and fetal plasma, and there were positive correlations between the maternal and fetal plasma concentrations of glucose, and between the glucose and fructose concentrations of fetal plasma.
  • (2) Correction for within-person variation in urinary excretion increased this partial correlation coefficient between intake and excretion to 0.59 (95% CI = 0.03 to 0.87).
  • (3) Ca2+ transport was positively correlated with MR cell density.
  • (4) Subsequently, the study of bundle branch block and A-V block cases revealed that no explicit correlation existed between histopathological changes and functional disturbances nor between disturbances in conduction (i.e.
  • (5) Irrespective of the type of arthropathy, synovial fluid dialysable hydroxyproline levels correlate with urinary hydroxyproline excretion.
  • (6) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
  • (7) However, there was no correlation between the length of time PN was administered to onset of cholestasis and the gestational age or birth weight of the infants.
  • (8) The correlates of three characteristics of familial networks (i.e., residential proximity, family affection, and family contact) were examined among a national sample of older Black Americans.
  • (9) When the data correlating DHT with protein synthesis using both labelling techniques were combined, the curves were parallel and a strong correlation was noted between DHT and protein synthesis over a wide range of values (P less than 0.001).
  • (10) Plasma NPY correlated better with plasma norepinephrine than with epinephrine, indicating its origin from sympathetic nerve terminals.
  • (11) Large gender differences were found in the correlations between the RAS, CR, run frequency, and run duration with the personality, mood, and locus of control scores.
  • (12) Based on several previous studies, which demonstrated that sorbitol accumulation in human red blood cells (RBCs) was a function of ambient glucose concentrations, either in vitro or in vivo, our investigations were conducted to determine if RBC sorbitol accumulation would correlate with sorbitol accumulation in lens and nerve tissue of diabetic rats; the effect of sorbinil in reducing sorbitol levels in lens and nerve tissue of diabetic rats would be reflected by changes in RBC sorbitol; and sorbinil would reduce RBC sorbitol in diabetic man.
  • (13) Using multiple regression, a linear correlation was established between the cardiac index and the arterial-venous pH and PCO2 differences throughout shock and resuscitation (r2 = .91).
  • (14) These correlations were significant at the p = 0.005 level.
  • (15) A significant correlation was found between the amplitude ratio of the R2 and the sensitivity ratio of the rapid off-response at short and long wavelengths.
  • (16) Measures of average and cumulative rank were used to augment tests of the significance of correlations between different indicators.
  • (17) Glucose release from these samples was highly correlated with starch gelatinization (r2 = .99).
  • (18) Positivity was not correlated with current residence census tract socioeconomic indicators in black or white females.
  • (19) Survival was independent of the type of clinical presentation and protocol employed but was correlated with the stage (P less than 0.0005), symptoms (P less than 0.025), bulky disease (P less than 0.025) and bone marrow involvement (P less than 0.025).
  • (20) The intensity of the type III specific peptide bands correlates with the type III content of the samples.