Table 3.
Sex-specific relative risks of neck pain in China due to effects of age, period, and cohort
| Factor | Incidence in male subjects | Incidence in female subjects | ||
|---|---|---|---|---|
| RR (95% CI) | P value | RR (95% CI) | P value | |
| Age | ||||
| 5–9 | 1.00 | 1.00 | ||
| 10–14 | 3.22 (3.06–3.40) | < 0.001 | 3.62 (3.42–3.83) | < 0.001 |
| 15–19 | 5.06 (4.75–5.39) | < 0.001 | 6.36 (5.93–6.81) | < 0.001 |
| 20–24 | 7.40 (6.89–7.94) | < 0.001 | 9.75 (9.04–10.53) | < 0.001 |
| 25–29 | 11.52 (10.67–12.45) | < 0.001 | 15.14 (13.95–16.43) | < 0.001 |
| 30–34 | 14.78 (13.64–16.01) | < 0.001 | 19.62 (18.02–21.36) | < 0.001 |
| 35–39 | 15.44 (14.23–16.76) | < 0.001 | 21.43 (19.65–23.37) | < 0.001 |
| 40–44 | 16.80 (15.46–18.26) | < 0.001 | 25.27 (23.12–27.61) | < 0.001 |
| 45–49 | 15.83 (14.55–17.21) | < 0.001 | 25.30 (23.13–27.68) | < 0.001 |
| 50–54 | 15.17 (13.94–16.51) | < 0.001 | 23.31 (21.30–25.52) | < 0.001 |
| 55–59 | 16.70 (15.31–18.20) | < 0.001 | 22.73 (20.75–24.90) | < 0.001 |
| 60–64 | 16.31 (14.95–17.80) | < 0.001 | 21.07 (19.23–23.09) | < 0.001 |
| 65–69 | 15.53 (14.23–16.96) | < 0.001 | 20.43 (18.63–22.39) | < 0.001 |
| 70–74 | 15.03 (13.76–16.41) | < 0.001 | 19.35 (17.65–21.22) | < 0.001 |
| 75–79 | 12.89 (11.82–14.06) | < 0.001 | 15.64 (14.29–17.12) | < 0.001 |
| 80–84 | 11.26 (10.34–12.27) | < 0.001 | 12.54 (11.48–13.70) | 0.652 |
| 85–89 | 9.75 (8.97–10.60) | 0.125 | 9.60 (8.82–10.45) | < 0.001 |
| 90–94 | 8.29 (7.66–8.97) | < 0.001 | 6.95 (6.42–7.52) | < 0.001 |
| Period | ||||
| 1990–1994 | 1.00 | 1.00 | ||
| 1995–1999 | 1.03 (1.03–1.04) | < 0.001 | 1.05 (1.05–1.05) | < 0.001 |
| 2000–2004 | 1.07 (1.07–1.07) | < 0.001 | 1.11 (1.10–1.11) | 0.015 |
| 2005–2009 | 1.12 (1.12–1.12) | 0.039 | 1.15 (1.15–1.15) | < 0.001 |
| 2010–2014 | 1.19 (1.19–1.19) | < 0.001 | 1.20 (1.20–1.20) | < 0.001 |
| 2015–2019 | 1.24 (1.24–1.24) | < 0.001 | 1.25 (1.25–1.25) | < 0.001 |
| Cohort | ||||
| 1900–1904 | 1.00 | 1.00 | ||
| 1905–1909 | 0.96 (0.94–0.98) | < 0.001 | 0.95 (0.93–0.98) | < 0.001 |
| 1910–1914 | 0.93 (0.91–0.96) | < 0.001 | 0.92 (0.89–0.96) | < 0.001 |
| 1915–1919 | 0.89 (0.86–0.92) | < 0.001 | 0.89 (0.86–0.93) | < 0.001 |
| 1920–1924 | 0.85 (0.82–0.88) | < 0.001 | 0.86 (0.82–0.90) | < 0.001 |
| 1925–1929 | 0.81 (0.78–0.85) | < 0.001 | 0.82 (0.78–0.86) | < 0.001 |
| 1930–1934 | 0.77 (0.74–0.81) | < 0.001 | 0.79 (0.75–0.83) | < 0.001 |
| 1935–1939 | 0.74 (0.71–0.77) | < 0.001 | 0.76 (0.72–0.80) | < 0.001 |
| 1940–1944 | 0.72 (0.69–0.74) | < 0.001 | 0.74 (0.71–0.78) | < 0.001 |
| 1945–1949 | 0.71 (0.68–0.73) | < 0.001 | 0.73 (0.69–0.76) | < 0.001 |
| 1950–1954 | 0.70 (0.67–0.72) | < 0.001 | 0.71 (0.67–0.74) | < 0.001 |
| 1955–1959 | 0.68 (0.66–0.71) | < 0.001 | 0.69 (0.66–0.72) | < 0.001 |
| 1960–1964 | 0.65 (0.63–0.68) | 0.232 | 0.66 (0.63–0.69) | 0.338 |
| 1965–1969 | 0.62 (0.60–0.64) | 0.045 | 0.63 (0.60–0.66) | 0.024 |
| 1970–1974 | 0.58 (0.56–0.60) | < 0.001 | 0.59 (0.57–0.62) | < 0.001 |
| 1975–1979 | 0.55 (0.53–0.56) | < 0.001 | 0.55 (0.53–0.58) | < 0.001 |
| 1980–1984 | 0.52 (0.50–0.53) | < 0.001 | 0.52 (0.51–0.54) | < 0.001 |
| 1985–1989 | 0.49 (0.48–0.50) | < 0.001 | 0.50 (0.48–0.52) | < 0.001 |
| 1990–1994 | 0.47 (0.46–0.48) | < 0.001 | 0.48 (0.47–0.49) | < 0.001 |
| 1995–1999 | 0.45 (0.45–0.45) | < 0.001 | 0.46 (0.45–0.47) | < 0.001 |
| 2000–2004 | 0.43 (0.42–0.44) | < 0.001 | 0.44 (0.44–0.44) | < 0.001 |
| 2005–2009 | 0.41 (0.39–0.43) | < 0.001 | 0.42 (0.40–0.44) | < 0.001 |
| 2010–2014 | 0.39 (0.32–0.48) | 0.001 | 0.41 (0.33–0.50) | 0.001 |
| Deviance | 16.60 | 38.30 | ||
| AIC | 9.43 | 9.80 | ||
| BIC | − 283.05 | − 261.35 | ||
RR denotes the relative risk of neck pain incidence in particular age, period, or birth cohort relative to the average level of all ages, periods, or birth cohorts combined
RR relative risk, CI confidence interval, AIC Akaike information criterion, BIC Bayesian information criterion