Table 2. Mean(SD) of age at diagnosis, for all Surveillance, Epidemiology and End Results(SEER) and in-institute participants, by stage and other clinical characteristics.
| Characteristics | All patient N = 45904 | Stage IA N = 12769 | Stage IB N = 6658 | Stage IIA N = 3384 | Stage IIB N = 3194 | Stage IIIA N = 6911 | Stage IIIB N = 1929 | Stage IV N = 11059 |
|---|---|---|---|---|---|---|---|---|
| Race-mean(SD) | ||||||||
| Caucasian | 69.59(10.26) | 69.75(9.72) | 70.69(10.16) | 69.36(10.25) | 69.63(10.07) | 69.36(10.32) | 68.54(10.59) | 69.12(10.81) |
| African-American | 66.22(10.29) | 66.57(9.44) | 67.44(10.28) | 66.04(10.68) | 66.59(10.66) | 66.34(10.08) | 65.34(10.75) | 65.48(10.69) |
| Asian | 66.25(11.28) | 64.93(11.16) | 66.75(10.55) | 66.72(11.04) | 67.56(10.71) | 65.98(10.80) | 67.33(11.92) | 67.28(12.29) |
| Sex-mean(SD) | ||||||||
| Male | 69.21(10.19) | 69.72(9.53) | 70.41(9.94) | 68.92(10.19) | 69.25(10.02) | 68.90(10.31) | 68.06(10.69) | 68.59(10.69) |
| Female | 68.74(10.65) | 68.60(10.23) | 69.71(10.62) | 68.64(10.70) | 69.18(10.44) | 68.56(10.54) | 68.03(10.83) | 68.44(11.31) |
| Grade-mean(SD) | ||||||||
| Well-differentiated | 69.00(10.92) | 68.26(10.53) | 69.82(11.35) | 68.57(12.51) | 69.20(10.54) | 69.67(11.03) | 69.70(10.49) | 71.10(11.28) |
| Moderately-differentiated | 69.06(10.24) | 69.00(9.7) | 70.12(9.96) | 68.70(10.36) | 69.72(9.98) | 68.45(10.37) | 67.99(10.81) | 68.83(11.03) |
| Poorly-differentiated | 68.91(10.40) | 70.31(9.53) | 70.10(10.14) | 68.94(9.95) | 68.80(10.28) | 68.81(10.34) | 67.99(10.76) | 68.06(10.85) |
| undifferentiated | 68.15(10.67) | 68.67(9.05) | 68.65(12.05) | 68.58(8.78) | 66.51(11.05) | 69.80(10.28) | 65.36(8.96) | 67.70(11.32) |
| Histology-mean(SD) | ||||||||
| Squamous cell carcinoma | 70.56(9.60) | 71.46(8.51) | 71.71(9.22) | 69.63(9.82) | 70.72(9.54) | 69.85(10.02) | 68.92(10.26) | 70.35(9.97) |
| Adenocarcinoma | 68.14(10.75) | 68.26(10.27) | 69.19(10.72) | 68.18(10.80) | 68.10(10.56) | 67.88(10.63) | 67.09(11.19) | 67.64(11.32) |
| Size-mean(SD) | ||||||||
| size ≤ 1 cm | 67.37(9.78) | 67.44(9.66) | 65.04(10.21) | 67.03(8.64) | 68.00(9.69) | 68.54(9.22) | 68.04(9.23) | 67.25(11.01) |
| 1 cm < size ≤ 2 cm | 68.37(9.9) | 68.71(9.83) | 67.63(9.63) | 67.04(9.82) | 68.50(9.67) | 67.66(9.99) | 68.11(10.09) | 68.16(10.54) |
| 2 cm < size ≤ 3 cm | 69.45(10.38) | 70.25(10.12) | 69.63(10.34) | 67.76(10.15) | 69.51(9.54) | 68.68(10.28) | 69.30(10.78) | 68.53(11.19) |
| 3 cm < size ≤ 5 cm | 69.50(10.72) | – | 70.98(10.29) | 67.76(10.78) | 70.17(10.04) | 69.14(10.54) | 67.90(11.18) | 68.59(11.11) |
| 5 cm < size ≤ 7 cm | 69.31(10.77) | – | – | 70.84(10.3) | 69.14(10.73) | 69.17(10.58) | 68.33(10.77) | 68.90(11.05) |
| size > 7 cm | 68.30(10.61) | – | – | 69.11(10.71) | 68.43(10.63) | 67.09(10.40) | 68.20(10.59) | |
| Site | ||||||||
| Upper lobe | 68.79(10.33) | 69.14(9.83) | 69.79(10.18) | 68.81(10.16) | 68.51(10.16) | 68.51(10.34) | 67.91(10.64) | 68.21(10.94) |
| Middle lobe | 68.36(10.76) | 68.39(10.39) | 69.19(10.62) | 68.56(10.07) | 70.76(10.11) | 68.15(10.86) | 67.93(11.63) | 67.19(11.44) |
| Lower lobe | 69.66(10.42) | 69.14(10.05) | 70.81(10.28) | 68.86(10.81) | 70.54(10.12) | 69.59(10.31) | 69.41(10.61) | 69.70(10.88) |
| Main bronchus | 65.82(11.22) | 62.18(12.08) | 66.36(13.51) | 67.44(11.49) | 64.66(10.8) | 66.02(11.37) | 64.63(10.95) | 66.10(10.81) |
| T stage-mean(SD) | ||||||||
| T1a | 68.36(9.82) | 68.48(9.80) | – | 67.08(9.92) | – | 67.59(9.61) | 67.52(10.77) | 68.51(10.13) |
| T1b | 69.74(10.29) | 70.20(10.15) | – | 68.59(9.76) | – | 68.72(10.46) | 69.76(11.19) | 68.43(11.01) |
| T2a | 69.26(10.58) | – | 70.05(10.30) | 67.32(10.67) | – | 68.24(10.67) | 68.90(10.64) | 68.76(11.06) |
| T2b | 69.62(10.71) | – | – | 70.84(10.26) | 68.65(10.82) | 68.87(10.69) | 70.00(11.03) | 68.95(11.05) |
| T3 | 68.93(10.56) | – | – | – | 69.29(10.13) | 68.65(10.57) | 67.92(10.67) | 68.83(10.93) |
| T4 | 68.37(10.76) | – | – | – | – | 69.87(9.92) | 67.62(10.69) | 68.02(11.05) |
| N stage-mean(SD) | ||||||||
| N0 | 69.61(10.20) | 69.08(9.95) | 70.05(10.30) | 70.84(10.26) | 69.29(10.13) | 70.36(9.87) | – | 70.33(10.97) |
| N1 | 67.86(10.42) | – | – | 67.54(10.34) | 68.66(10.82) | 68.19(10.21) | – | 67.89(10.61) |
| N2 | 68.31(10.75) | – | – | – | – | 68.48(10.54) | 67.9(10.56) | 68.23(10.99) |
| N3 | 67.17(10.83) | – | – | – | – | – | 68.19(10.94) | 66.65(10.73) |
SD: Standard deviation.