Socioeconomic differences in incidence of cervical cancer in Finland by cell type

Figures & data

Table I. Observed and expected numbers of adenocarcinoma and squamous cell carcinoma of cervix uteri, with standardised incidence ratios (SIR) and 95% confidence intervals (CI) in Finland in women born in 1906–1945 and diagnosed in 1971–1995, by socioeconomic status (SES).

	Number of cases
SES	Observed	Expected	SIR	95% CI
Squamous cell carcinoma
I	231	394.1	0.59	0.51, 0.66
II	1278	1477.8	0.86	0.82, 0.91
III	2535	2407.3	1.05	1.01, 1.09
IV	1058	822.8	1.29	1.21, 1.36
Total	5102		1.00	(reference)
Adenocarcinoma
I	46	42.4	1.08	0.79, 1.45
II	164	158.5	1.03	0.88, 1.20
III	258	273.8	0.94	0.83, 1.06
IV	105	98.2	1.07	0.87, 1.28
Total	573		1.00	(reference)

Figure 1. Age adjusted incidence of adenocarcinoma and squamous cell carcinoma of cervix uteri by socioeconomic status (SES) among Finnish women aged 45–64 at the beginning of each 5-year period between 1971 and 1995.