Table 1.

Correlation coefficients between search index values, incidence rate of cancers, and mortality rate of cancers.

Cancer	Correlation between search index values and incidence rate		Correlation between search index values and mortality rate
	r (correlation coefficient)	P value	r (correlation coefficient)	P value
Lung cancer	0.80	<.001	0.80	<.001
Liver cancer	0.28	.02	0.28	.02
Stomach cancer	0.50	<.001	0.02	.88
Esophageal cancer	0.50	<.001	0.21	.08
Colon and rectal cancer	0.81	<.001	0.81	<.001
Pancreatic cancer	0.86	<.001	0.86	<.001
Breast cancer	0.56	<.001	0.76	<.001
Leukemia	0.75	<.001	-0.70	<.001
Brain and nervous system cancer	0.63	<.001	0.63	<.001
Cervical cancer	0.64	<.001	0.65	<.001
Non-Hodgkin lymphoma	0.88	<.001	0.88	<.001
Prostate cancer	0.67	<.001	0.67	<.001
Nasopharynx cancer	0.08	.51	0.44	<.001
Bladder cancer	0.62	<.001	0.62	<.001
Gallbladder and biliary tract cancer	0.88	<.001	0.88	<.001
Lip and oral cavity cancer	0.88	<.001	0.88	<.001
Ovarian cancer	0.58	<.001	0.58	<.001
Larynx cancer	0.82	<.001	0.74	<.001
Kidney cancer	0.73	<.001	0.73	<.001
Squamous cell carcinoma	0.94	<.001	0.87	<.001
Uterine cancer	0.04	.73	-0.42	<.001
Multiple myeloma	0.84	<.001	0.84	<.001
Thyroid cancer	0.77	<.001	0.77	<.001
Malignant skin melanoma	0.55	<.001	0.55	<.001
Hodgkin lymphoma	0.91	<.001	-0.91	<.001
Mesothelioma	0.79	<.001	0.79	<.001
Testicular cancer	0.57	<.001	-0.08	.48
Basal cell carcinoma	0.83	<.001	—a	—a

^aNot available.