Season of Birth and Exceptional Longevity: Comparative Study of American Centenarians, Their Siblings, and Spouses
Table 7
Odds ratios ( values) to become a centenarian as predicted by conditional logistic regression (fixed effects), by different age cut-off and gender subgroups for spouses of centenarians. Effects of month of birtha.
Variable
All spouses
Spouses survived to age 50
Month of birth:
January
1.27 (0.358)
1.29 (0.346)
February
1.65 (0.066)
1.83 (0.032)
March
1.58 (0.084)
1.65 (0.067)
April
Reference
Reference
May
1.37 (0.263)
1.46 (0.190)
June
1.46 (0.176)
1.63 (0.099)
July
1.61 (0.096)
1.66 (0.086)
August
1.52 (0.117)
1.56 (0.112)
September
1.58 (0.079)
1.66 (0.063)
October
2.17 (0.004)
b,c
2.24 (0.004)
b,c
November
2.22 (0.003)
b,c
2.22 (0.004)
b,c
December
1.21 (0.487)
1.32 (0.332)
Female sex
3.40 (<0.001)
3.42 (<0.001)
Pseudo
0.2192
0.2226
Number of observations
1,921
1,800
aStatistically significant seasonal effects () are highlighted in bold.
bStatistically significant after Bonferroni adjustment.
cStatistically significant after Benjamini-Hochberg procedure.
