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Literature DB >> 884398

The power of a test for seasonality.

Abstract

The power of a test of Edwards to detect seasonality or cyclic variation in the rate of an epidemiological event is derived and tabulated. A simple harmonic or sinusoidal form of variation is assumed, but the power results should also apply approximately to other situations with similar types of rate oscillation. The results may be used by investigators to determine the sample size required in order to detect seasonal variation of a given magnitude, or conversely to calculate the probability of detecting seasonality of various amplitudes with a sample of fixed size.

Mesh：

Year: 1977 PMID： 884398 PMCID： PMC479010 DOI： 10.1136/jech.31.2.137

Source DB: PubMed Journal: Br J Prev Soc Med ISSN： 0007-1242

7 in total

1. Seasonal variation in anencephalus in Canada.

Authors: J M Elwood
Journal: Br J Prev Soc Med Date: 1975-03

2. A test for seasonality of events with a variable population at risk.

Authors: S D Walter; J M Elwood
Journal: Br J Prev Soc Med Date: 1975-03

3. Season of birth in schizophrenia and neurosis.

Authors: E H Hare
Journal: Am J Psychiatry Date: 1975-11 Impact factor: 18.112

4. The recognition and estimation of cyclic trends.

Authors: J H EDWARDS
Journal: Ann Hum Genet Date: 1961-05 Impact factor: 1.670

5. Letter: The power of a test for seasonality of birth with reference to schizophrenia.

Authors: W H James
Journal: Br J Psychiatry Date: 1976-07 Impact factor: 9.319

6. Seasonal variation in the incidence of mania.

Authors: R L Symonds; P Williams
Journal: Br J Psychiatry Date: 1976-07 Impact factor: 9.319

7. On Edwards' criterion of seasonality and a non-parametric alternative.

Authors: D Hewitt; J Milner; A Csima; A Pakula
Journal: Br J Prev Soc Med Date: 1971-08

7 in total

1. Seasonality of births in horizontal strabismus: comparison with birth seasonality in schizophrenia and other disease conditions.

Authors: A B Agarwal; K Cassinelli; L A Johnson; K Matsuda; B Kirkpatrick; W Yang; C S von Bartheld
Journal: J Dev Orig Health Dis Date: 2019-03-22 Impact factor: 2.401

The power of a test for seasonality.

1. Seasonal variation in anencephalus in Canada.

2. A test for seasonality of events with a variable population at risk.

3. Season of birth in schizophrenia and neurosis.

4. The recognition and estimation of cyclic trends.

5. Letter: The power of a test for seasonality of birth with reference to schizophrenia.

6. Seasonal variation in the incidence of mania.

7. On Edwards' criterion of seasonality and a non-parametric alternative.

1. Seasonality of births in horizontal strabismus: comparison with birth seasonality in schizophrenia and other disease conditions.

2. Exact significance levels for Hewitt's test for seasonality.

3. Absence of circadian rhythms of preterm premature rupture of membranes and preterm placental abruption.

4. Seasonal variations in the process of care in urban general practice.

5. Seasonal trends in the prevalence of hypospadias: Aetiological implications.

6. Seasonal changes in proportion of cardiac surgeries associated with diabetes, smoking and elderly age.

7. Seasonal differences in the onset of the EBV-positive and -negative forms of paediatric Hodgkin's lymphoma.