Skip to main content

Table 2 Mortality and disease incidences (events per 10,000 person-years) in the background population and in the participant sample, before and after reweighting; the follow-up begins at baseline in 1991–1996 and ends at an event, death, emigration, or at the latest in the end of 2016

From: Can the validity of a cohort be improved by reweighting based on register data? Evidence from the Swedish MDC study

 

Population (n = 71,447)

Participants (n = 28,096)

Participants, reweighted

All-cause mortality

 Everyone

222

176

182

 Participation quintile 1

264

196

192

 Participation quintile 2

283

227

226

 Participation quintile 3

223

188

188

 Participation quintile 4

182

159

159

 Participation quintile 5

171

150

150

CVD mortality

 Everyone

76

58

62

 Participation quintile 1

94

72

71

 Participation quintile 2

103

82

82

 Participation quintile 3

76

64

64

 Participation quintile 4

60

48

48

 Participation quintile 5

53

46

46

Cancer mortality

 Everyone

72

63

64

 Participation quintile 1

70

63

61

 Participation quintile 2

84

71

70

 Participation quintile 3

74

66

66

 Participation quintile 4

67

62

62

 Participation quintile 5

66

58

58

CVD incidence

 Everyone

128

113

118

 Participation quintile 1

145

129

129

 Participation quintile 2

154

144

144

 Participation quintile 3

130

122

122

 Participation quintile 4

111

99

100

 Participation quintile 5

105

99

100

Cancer incidence

 Everyone

136

133

132

 Participation quintile 1

119

120

117

 Participation quintile 2

149

140

140

 Participation quintile 3

137

133

133

 Participation quintile 4

133

133

133

 Participation quintile 5

140

134

134

  1. Participation quintiles were defined based on the background population. There were 2374 participants in the first participation quintile, 4827 in the second, 5968 in the third, 7037 in the fourth, and 7890 in the fifth