Table 2. Prevalence of migraine by socio-demographic variables among Spanish adults, according to the national health surveys conducted in Spain from 2003 to 2012.
| VARIABLE | CATEGORIES | 2003 SNHS % (95%CI) | 2006 SNHS % (95%CI) | 2009 EHSS % (95%CI) | 2011 SNHS % (95%CI) |
| Sexabcd | Male | 3.95 (3.48–4.48) | 6.51 (5.92–7.15) | 5.39 (4.89–5.95) | 4.91 (4.42–5.45) |
| Female# | 9.02 (8.39–9.69) | 17.16 (16.42–17.93) | 15.98 (15.21–16.78) | 14.24 (13.48–15.04) | |
| Ageabcd | 16–30 years | 4.26 (3.57–5.08) | 9.33 (8.28–10.50) | 7.95 (6.95–9.07) | 7.15 (6.17–8.27) |
| 31–50 years | 6.46 (5.82–7.18) | 12.75 (11.97–13.57) | 10.68 (9.91–11.50) | 9.75 (8.99–10.56) | |
| 51–70 years | 8.63 (7.77–9.59) | 13.13 (12.21–14.12) | 12.26 (11.35–13.23) | 11.50 (10.57–12.49) | |
| >70 years# | 7.54 (6.48–8.76) | 12.12 (10.99–13.35) | 13.16 (12.00–14.42) | 9.85 (8.85–10.95) | |
| Marital statusabcd | Unmarried | 4.72 (4.07–5.47) | 9.35 (8.48–10.31) | 8.19 (7.37–9.10) | 7.37 (6.60–8.23) |
| Married# | 7.27 (6.73–7.85) | 12.77 (12.14–13.43) | 11.35 (10.72–12.01) | 10.08 (9.46–10.74) | |
| Widow# | 8.54 (7.15–10.16) | 15.02 (13.41–16.79) | 15.73 (14.07–17.54) | 12.50 (11.10–14.06) | |
| Separated/divorced | 8.07 (6.02–10.73) | 15.55 (13.30–18.09) | 13.4 5(11.38–15.82) | 16.07 (13.37–19.20) | |
| Educational levelabcd | University | 4.73 (3.82–5.85) | 9.44 (8.38–10.62) | 8.27 (7.26–9.42) | 7.65 (6.59–8.88) |
| Secondary# | 5.02 (4.26–5.89) | 9.95 (9.10–10.87) | 9.99 (9.07–10.99) | 8.24 (7.42–9.15) | |
| Primary | 6.76 (6.20–7.36) | 12.94 (12.20–13.72) | 10.50 (9.79–11.25) | 10.59 (9.87–11.36) | |
| No studies# | 9.72 (8.49–11.12) | 16.63 (15.03–18.36) | 16.22 (14.87–17.66) | 12.58 (11.24–14.05) | |
| Occupational statusabcd | Employed# | 5.96 (5.46–6.49) | 10.27 (9.62–10.96) | 9.74 (9.11–10.40) | 7.98 (7.33–8.68) |
| Unemployed# | 6.73 (4.77–9.40) | 14.12 (12.15–16.36) | 12.40 (10.88–14.10) | 9.23 (8.00–10.62) | |
| Retired | 7.66 (6.96–8.42) | 13.62 (12.87–14.41) | 12.03 (11.24–12.87) | 11.75 (10.99–12.56) | |
| Immigrantbcd | Yes | 6.13 (4.01–9.26) | 9.57 (7.92–11.52) | 8.25 (6.73–10.09) | 7.02 (5.55–8.85) |
| No# | 6.56 (6.15–6.99) | 12.23 (11.73–12.75) | 11.15 (10.66–11.66) | 10.05 (9.57–10.56) | |
| Total prevalence of migraine # | 6.54 (6.14–6.97) | 11.94 (11.45–12.44) | 10.79 (10.31–11.29) | 9.69 (9.22–10.18) | |
CI confidence Interval.
a
Significant association for 2003 SNHS,
b
Significant association for 2006 SNHS,
c
Significant association for 2009 EHSS,
d
Significant association for 2011 SNHS.
#
Significant time trend from year 2003 to 2012 (P<0.05).